I don't think so. The MK4 will have this happen, but the MK3 was never cannonized like the muscle cars and movie cars like our friends in the jellybean MK4's.
I do believe that for the right person, and the right cars, getting 10k or so would not be impossible, but the car would have to be done right, and whoever buys those cars will have to know what they want.
Stock ones will not sell for that amount IMHO, but I could be wrong. Look at the crazy prices for clean stock Z28's? They are insane for what your getting.
I owned a 73 Type LT that i bought for 1300, and sold for 2300 and now it would be worth 10 or 15k easy because it was clean, and had all the original stuff. There are beaters in the early 70's now going for 5k.
The late 60's stuff is 100k depending on what you have to sell. (Barret Jackson anyway.)
Will the Supra from 88 be in the 100K range here in 20 or so more years? IDK, but I doubt it. (If it is, I'm still going to be driving it around however...
I belive the next engine if there ever is one, will be a nice LS3 based 7.0L twin turbo
No more Mr. Nice guy to the rest of the playground group. A 1000+ Hp street MK3 would really irritate just about everyone I came across. (Especially the domestic guys, but the import people as well...)