From the perspective of someone who has done BOTH sides of this tail...
As a band.
We used to look forward to gigs where the gear was provided. No, we weren't lazy, it generally meant there was a good reason the venue provided gear which in turn would mean a pain in the ass for US if we'd had to take our own.
The most popular reason was band numbers. I've played gigs where there has been 5 or 6 bands, all with their own drums and back line, each with their own beaten up truck/van/car/trailer/all of the above to lug it around in. The chaos starts in the car park, proceeds to the stage, through the whole event and back to the car park where you find you can't get out because the prima-donna headline act (who turned up late as usual) is blocking everyone else, and they're playing last... This is not a problem if you're playing Wembly Stadium, or (insert huge venue here), but we're not. This is the real world. The "average" venue in the middle of a city is either a pub that holds 50 + a folk singer on Friday night, or a night club that can hold up to 5000 but has no car park and no "loading bay" because it simply doesn't need one.
Then there's the venues that are up three flights of stairs.. or worse, down in the basement with narrow, winding basement type stairs and your asking yourself how the hell did they get all this gear down here when I can't my Marshall cab to go around the corner in the stairwell?
And finally there's playing in London... if at all possible AVOID playing in London UNLESS you're told the venue provides drums and back line. In fact, with the 20/20 vision of hindsight, I'd make it a requirement before I played anywhere in London again. Turn up, plug in, play.
As a FOH engineer/stage manager.
I've been both, and at smaller gigs, at the same time. I've worked large stages with acts from The Levellers to The Stranglers and Motorhead. They bring their own back line, but have a truck full of roadies to shift it for them, as well as 10 or so of our stage crew.
Back in the real world, I spent 2 years as "house engineer" for a local promoter. He had access to a venue in the middle of town that held 500 - 600 (as long as they weren't too well fed). We had everything from local collage bands to the "has beens" tour. (the old bands from 70's 80's that are still going that you never hear about unless you're at one of these type of gigs). Bad Manners, The Selector, UK Subs,
Farrell & Black, etc,.
The only problem was that there were only 3 parking spaces, and I made sure I got one of them. There was a public car park nearby, so you could unload at the venue then dump the vehicles around the corner. To compensate, where ever possible we got the "headline" act to share their backline with the promoter writing into their contracts that they must turn up on time, etc. so it could all be sound checked and the settings recorded. The changeover then mostly involved me starting at one side of the stage with my crib sheet and working my way across every amp until I'd reset every knob/switch on the backline. Much better than trying to herd a bunch of gorillas carrying 3 full Marshall stacks and a 10 piece drum kit out through a small fire door, while being confronted by more gorillas trying to get in through the same door carrying an almost identical set of equipment... (to the great amusement of the audience!!)
SXSW is a festival. Not in a muddy field like Glastonbury, but a whole city like the Edinburgh festival. Music is just one part of it. The roads will be closed. You will not be able to drive up to the front door of the venue. THIS IS NOT THE VENUE'S FAULT. It is the same for everyone. The range of venues is from small bars to large theatres (I looked). From basements to "upstairs lounge" (I looked). The acts range from rock/metal through folk to rap and dj's, and the rock bands are playing the small bars as well as the large theatres. Many of the bands are playing 3 or 4 different venues. The music part lasts for 6 days, you should be playing every day if possible.
You posted a short while back about feeling let down by your band mates when confronted with recording and "going on the road" and the future of the band in general, from what I read between the lines. Well this is it. This is what being a "professional" musician in "the business" is all about.
No, you maybe won't get cash in your pocket from
this gig, but you'll have SXSW, Austin, TX on your band CV and that
could put cash in your pocket in the future.
What is almost for certain is that if you turn it down because you had to carry your own guitar 2 blocks along the sidewalk to the venue, then you prolly should start thinking about a different job. Your promoter will most certainly remember it...