Looking at a used 2003 Hotsprings Prodigy for $3500 vs new 2012 Jetsetter or Limelight for almost double that ($6600/$6000). All are from a reputable dealer. The used Prodigy was (reportedly) well taken care of; owner traded for new smaller HS tub when moving from large home to a townhome. It comes with 1 year warranty. I'd like a 7 - 10 year life for the tub. Thoughts?