FYI - Recent Sales Price Trends for 2nd Generation RX-7s
For you prospective buyers / sellers. This information is from Keith Martin's Collector Car Price Tracker based on verified ebay auction sales. More model years beyond 1987 should be added in the future.

Market Values for 1986-1987 Mazda RX-7

Past 90 days
Sales 4
Low $178
High $3,500
Average $2,419

Most Recent 12 Months
Sales 56
Low $178
High $7,600
Average $2,191

Sales 2005-Present
Sales 339
Low $153
High $14,170
Average $1,874

339 historical auctions found for 1986-1988 Mazda RX-7
Current Market Prices
Updated 06/24/2009
Very Good: $3,328
Average Driver: $1,757
Needs TLC: $1,015

Sales Numbers - By Model Year (Results from 339 ebay auctions)
1987 - 31
1986 - 17

Here is 1st Gen ebay sales analysis:
https://www.rx7club.com/1st-gen-general-discussion-207/fyi-recent-sales-price-trends-first-generation-rx-7s-848604/

 

i do dislike the stereotypical idea that our cars are cheap.. boo!!

Doesnt mean anything, just that most of those ebay cars are crap lol

 

Just means our cars are cheap, which is true.

 

they are relatively cheap, but you have to remember that compared to other 87-91 model cars, these are much more expensive. Take a 89 240sx, or a 90 mr2.

Another factor that makes our cars appear 'cheap' is that there are many more NAs running around diluting the market. The T2 market remains stronger, and much like that data shows, they are gaining value. I am a little surprised to see that NA FCs are gaining value, but you might consider me anti-NA. :X

KBB for a S4 FC TII is 5500 in good shape. Back in 99, KBB was 2500.

 

Convertibles are always quoted as the same price as TIIs (of the same condition) on KBB too. It's the NA coupes that aren't worth as much, but that's to be expected. And half of the cars on ebay are trashed, so you can't expect them to sell for much at all.

 

but, in reality ... convertibles are cheaper than coupes, and way cheaper than t2, (the same yr) for some reason
i dunno why

 

Following up after the original post it's interesting to see that the Mazda RX-7 is NUMBER 7 (call it karma) among the TOP 10 Searches last week on the Car Collector Price Tracker website:

http://www.collectorcarpricetracker.com/
___________
Top Ten CCPT Searches Last Week

Here are the ten collector cars searched for most often by Price Tracker members last week.

1) Ford Mustang
2) Chevrolet Camaro
3) Chevrolet Corvette
4) Porsche 911
5) Pontiac GTO
6) Chevrolet Chevelle
7) Mazda RX-7
8) Pontiac Firebird
9) Chevrolet Bel Air
10) Ford

 

I don't know how you came to that conlusion. I've seen far more cheap NA coupes than convertibles. There are numerous verts (many are red '88s) that are bought up by used car dealers, and then turned around for a profit. I don't think I've ever seen a NA coupe for sale (on ebay at least) by a dealer. That gives you an idea of which one holds its value better & is easier to sell.