Radical! is an interesting pin. You don't see a lot of them around, but it isn't particularly popular. Depending on the condition, I'd say it's worth anywhere from $500-$1,000. If you found the right buyer, you could possibly sell it for more. High Speed is probably in the same $500-$1000 ballpark. Whirlwind, however, will cost you quite a bit more. It's a very popular game, and it has been trending upward in value. Your offer of $1,300 is fair, but I can understand why the seller didn't go for it. If I owned a nice one, I probably wouldn't sell it for less than $1,500 either.

Skate or die! I love Radical so congratulations on owning a fun game.
I never really took to Whirlwind in the same way. It's a nice game but I'm not keen on the "hill billy" music and I'm not sure the price of 1500 matches the game play. If I were you I'd stick to my price and maybe widen my search to other games.

Where are you located at?

Let me know if you want to sell the Radical

I also love Radical, I was bidding on one on Ebay but lost. My Skateball will have to suffice for skateboard themed pins for now....

I think it sold somewhere between 800-1000 but it was REALLY nice, and pins cost a bit more up here...

Good information on pin price values: http://www.mindformation.com/cgi-bin/ebaypins.pl I tend to use Avg. w/o Min/Max as a high side of the price scale.