Seems to be a trend these days.. seriously. Only 9 grand for both.. too bad the machines SUCK.

http://cgi.ebay.com/KONAMI-ARCADE-GAME-Drum-Mania-Guitar-Freaks-lINK-UP_W0QQitemZ170087432355QQihZ007QQcategoryZ13716QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

These are from an arcade in the mall near my house. Only Guitar player 2 is good, player 1 gives random misses and sucks horribly all around. Guitar 2 red button was missing and they replaced it with some cheapo button. Also, for drum. Most of the pads are in disrepair. Good luck!

They are also selling an Extreme machine, NOONE BUY THIS.  The pads are terrible, they are always broken.. That one is at RPM.  It's been abused for years.