It's pretty sad to see threads like this for a product that at one time was a mainstay for me. I remember how happy I was when I got Sampletank 1, because I was looking for something to replace my QSR rack mount ROMpler and Sampletank did that. Sonik Synth 2 was like getting a whole music store full of retro keyboards and it became my main sound source and Sampletank 2 tied the whole thing together into one nice package that worked well with the resources I had available to me in the old system I was using at the time. This was like 8 years ago though. I was running Sonar 4 at that time, IIRC.
Like others here, I've updated my equipment and I can run massive sound libraries now. I've moved on to Kontakt, too, and Sampletank sort of sits on my harddrive now.
I wouldn't say anything as negative as most people are posting here, but I do understand why it's happening. It seems to me that Sampletank is similar to old PS2 or Xbox games. We've moved on to the next generation and Sampletank is still in another era. It doesn't help that we've had the same promises from IK, that Sampletank 3 would be released any day now, for 3 years. We've watched product after product introduced and Sampletank just got ignored by IK.
If loyal diehards like me have given up,,, I really do think they have a high bar to get over. I do have to acknowledge that at one time I did love Sampletank, and all the extra libraries, though. It served me well for a long time,,, but I'm a Kontakt user now.