I remember when TextMate's author announced he started working on TM2 and that it would be $big_cat_name-only. I had a heated debate in the comments because I thought paying a full system upgrade (the computer could not run $big_cat_name) was too much for getting a free upgrade to a simple text editor.
I eventually bit the bullet and bought a new Mac. But TM2 never came and I paid thousands of euros for nothing.
Since then I've moved to Linux at home and I use Vim everywhere. For some reason, I can't imagine being unable to build Vim 7.4 on this machine.
And now that I feel very comfortable in Vim, I can't imagine switching to ST or back to TM.
I am certainly concerned that they might give it the official arse.
The only thing that gives me hope is that the Pro fits a small but important niche in the overall ecosystem: a system better suited for the developers of iOS applications than the iMac is.
The initial version of ML was terrible on my 2008 MBP but they made performance enhancements and now 10.8.2 works fine. Spending $50 for gb/RAM didn't hurt of course (best investment of my life btw).
I'll second that. I put an SSD into a 'poor performing' laptop as a stop gap before buying a new laptop. I still haven't bought that new laptop 2 years later.
Looks like I might have to bite the upgrade bullet this year.