NA - 1st Gen - <$6k
NB - 2nd Gen (99-05) - $6-15k
NC - 3rd Gen (05+) - too dam much for a car that small lol

The Sky/Solstice is holding $10 - 22 depending.

Granted you can find cheaper, so don't start all the "No you can get a 2011 Miata for 5k if you look" because those aren't the normal ranges. My figures for this was just based on 2 mintues of browsing Egay to see. Could vary depending. Miata is the better deal, but the Sky/Solstice is not so common.