Recalls affect all vehicles in a particular production range, and are usually performed prior to delivery if possible, on a used vehicle obtained from a BRP dealer. Have the dealer cross check the VIN# against the computer to see if a particular vehicle still needs recall work. The only recall affecting all 2010 RTs was the steering (DPS) recall. There were actually two of those, the second being the important one, where the DPS was replaced. There were some additional ones on small production ranges. The NHTSA site lists all recalls.
Warranty campaigns can affect all vehicles in a certain range...or just those exhibiting symptoms. Connecting a Spyder to BUDS usually shows the dealer if any across-the-board campaigns are outstanding. A VIN# search on the computer can show the same...I'd ask. Throttle body problems on the 2010s are fairly rare, and they do not have the same cause as the later RTs. There is no warranty campaign for those on the 2010, only the 2011 & 2012. Look at the seat on an early 2010. If it is delaminated at the bum stop, it should be replaced under warranty.
I'd strongly recommend a test ride of any 2010 you are considering, as well as asking a dealer to look up the VIN# on the computer. Don't settle for "It doesn't need anything." Ask for a printout of previous service work performed. The service history can tell you a lot about that particular Spyder. Beyond that, if I was buying a 2010 RT, I'd consider upgrading the front shocks to the 2011/2012 shocks or replacing them with Elkas. I'd also insist on having the alignment checked prior to delivery...and maybe having the toe-in slightly increased, especially if you are heavy or will ride with a passenger much of the time.