I am wanting to buy an ST 1300. I am finding quite a few 2004 models ranging in price from 3500 to 5500.00 depending on mileage & condition. Were there substantive improvements made on the 2005 & 2006 models that would direct one more in that direction? What about the ABS option, I read both good & bad but tend to believe the ABS is a good option. Ant advice greatly appreciated. Thanks, Gary in Arroyo Grande CA