Yea, if I was using my old 8 track reel to reel I'd probably record to it for better control during recording. But that is a lot of trouble getting a good rhythm track and usually involves a lot of run troughs and erasing. If the band was tight and well-rehearsed I'd think about it.
An easier solution is to mix your digital tracks out to a nice two-track. You'd get much of the analog effect (tho you don't have control over the saturation of specific tracks), I would think. I still need to track down a stereo head for my 1/4 inch revox. And get it serviced. And there is the analog rub. You have to spend money and/or time to keep it sounding worthwhile.
Personally, I find having a nice analog front end captures most of the analog goodness (tho not tape saturation, natch) without most of the troubles of running a temperamental, complex machine. Most of the big studios have ditched their tape machines for that reason - and use digital through high-end analog front and mixing. Still, there is something incredibly smooth and warm (but not fuzzy) about tape.
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