Right now I own a 1998 model American Jazz Deluxe. As much as I like this bass, I often wonder how much better the "upgrades" that Fender made over the ensuing years actually improved this fine instrument. I've heard the newest models with the samarium cobalt pickups are the bomb. I'd like some input as to which of the "three" models are the best. I know Fender changed the pickups in 1999 to the "noiseless" models. Then they upgraded/changed the preamp around 2003 to 18 volts and switched to the samarium cobalt pickups. So I'd really like to know if it would be worth it to sell my 98 model and go for a newer one. I've turned this into a poll breaking down the three major models. Thanks!