FYI - Recent Sales Price Trends for First Generation RX-7s
 

From Keith Martin's Collector Car Price Tracker based on verified ebay auction sales.

Market Values for 1978-1985 Mazda RX-7

Past 90 days
Sales 41
Low $465
High $6,700
Average $2,509

Most Recent 12 Months
Sales 198
Low $200
High $12,100
Average $2,351

Sales 2005-Present
Sales 800
Low $6
High $14,000
Average $2,108

800 historical auctions found for 1978-1985 Mazda RX-7
Current Market Prices
Updated 06/24/2009
Very Good: $4,401
Average Driver: $2,193
Needs TLC: $1,167

Sales Numbers - By Model Year (Results from 554 ebay auctions)
1985 - 210
1984 - 117
1983 - 73
1982 - 28
1981 - 38
1980 - 30
1979 - 2

Interesting Mike-
numbers really are all over the place. Will be interesting to see if economy downturn affects prices... you'd think it would but ebay listings seem as optimistic as ever...
Stu Aull
80GS
Alaska

I'd be surprised if any of us actually see the day we could "get rich" off our investments. Not that I'm selling anytime soon. I'm still in the collecting mode. Guess that's what makes us "enthusists".

Recent Sales Price Trends for 2nd Generation RX-7s ('86-'87)
 

For prospective buyers / sellers thought it might be interesting to compare 1st Gen sales statistics with those of the two 2nd Gen model years ('86 and '87) that Keith Martin's Collector Car Price Tracker is currently tracking. I'm assuming that more 2nd Gen model years beyond 1987 will be tracked as years progress.

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

I wish they'd give the std dev, too... so you could figure out the outliers. Do they offer the whole data, or just these summaries?

Any chance of a link, or is this from a dead-tree source?

RX-7 was NUMBER 7 among TOP 10 Searches last week.
 

Following up 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

So first gens, on average, are actually worth more than 2nd gens now? Thats pretty cool. I know the more rare S5, TII and GTU cars probably pull more in general, but the amount of dilapidated and 'drifted out' S4 cars pulls down their value pretty bad.

condition is all over the place too. really nice cars have been bringing in big money for a while, a friend of mine sold his restored 50,000mile 85 gsl-se for almost 9k (on craigslist, so its not tracked?)

and then i bought my original everything 90k mile 79 for $750....

1st Gen Values
 

Thats interesting an 85 GSL-SE with 50,000 miles went for 9 grand on Craigs list I wonder what mine would be worth have an 84 GSL-SE with 42000 original miles on it.
Not that I want to part with mine I love it.

They are so difficult, nearly impossible to find in good condition and unmolested.