I love my Scarabeo 500, it is far more comfortable touring than our BV 500. Seat and suspension is considerably better so that would be a tough call for me. If it were between the BV 500 and the BV 350 I'd take the BV 350. Better maintenance intervals and definitely more storage particularly if you remove the silly evap canister that is a California and New York requirement not a 50 state requirement.
BTW, I buy parts online for the Aprilia Scarabeo and the BVS. Service on the Sports City (also an Aprilia) is done by a local mechanic in Dillon, CO instead of taking it down to Denver for service. He's had no problems getting any parts he's needed either.
Geogordy - when did you get to pick up the new BVs? They look great.