They'll probably take trades on anything, but unless they've got some kind of guaranteed rate for trade-ins (if you bought the Roland from GC); I'd say you'd probably get more money in a private sale.
82 Ibanez artist ar105
94 Fender MIJ 72 tele custom reissue
04 prs se soapbar singlecut
97 Simon & Patrick pro flame maple
05 Art & Lutherie cedar 12
Custom Strat

68 Fender Super Reverb
78 Traynor TS200
80's Roland Cube20