I plan to own a rotary monster before I die. I'm torn between the first gen (lightweight & cheap, can fit the turbo II engine), third (friggin' awesome, but pricey to own & maintain), or maybe the RX-8 eventually.
My aunt's neighbor owned a 10th anniversary, they are absolutely beautiful cars. Good luck finding a good engine, that's the toughest part about RX-7's; keeping the apex seals together.
The best thing about Mazda rotaries is that there are full out rebuild kits with instructions, tools, and all the parts you need for a full rebuilld. They are nicely priced and you can do it yourself! I've been researching RX-7s for about three years. Once I get my engineering degree I plan on buying a 3rd gen.