I have been following the 993s in the want ads and its truly amazing what is going on. Those lucky enough to pull the trigger on a 1997 Turbo instead of waiting a year or two for 996 Turbo are MAKING OUT LIKE BANDITS!!!
But those aren't cars you can drive allot. Its really becoming a collector item.
If you are into restoring cars its a good time to get in.
Sloancars.com have a few mid 90's 993's going for $80K to $180K. Like buying a beaten down house a few years ago, putting in some remodeling work and flipping it for a huge profit.
The 356's are also doing well, excellent condition late 60's models are going for $80K plus.
I would HATE to have to rebuild one of those engines, now that they are officialy "in" those mechanics are going to start charging big dollars. $12-$20K+ for an engine rebuild. Meanwhile the 996 are dropping value fast and the engine rebuilds are still expensive, albeit much cheaper than the 993 in comparison.
A CPO 996 with an extended warranty may be the most reliable Porsche coupe ever made.
http://www.sloancars.com/vs1/images/Cars/88728200612346A.jpg
^ $185,000.00