bapu
Dave,
If I used ST2 as much as you apparently do/have I'd be in the same place.
The UI turned me off so early on that although I too have a fairly extensive library of ST2 stuff (IIRC I purchased nearly every esoundz expansion pack I could get my hands on) I just never really got into ST2 as a goto tool.
Amplitube on the other hand has been my goto amp sim.
I'm in pretty much the same place - I don't have the full version, but I have a few very nice ST libraries that don't really get used because I despise the GUI and it's not like I'm wanting for other options.
But haven't IK always had free/cheap versions of ST that don't come with much content, but will play whatever libraries you own?
From
http://www.ikmultimedia.com/products/sampletank/index.php?pp=sampletank-2-xl-versions SampleTank FREE
A fully working, expandable version of SampleTank. Simple to use and easily expandable with ReTank refills and sound libraries.
Given this, I don't get all this "upgrade price" concern people seem to be having.