wakesetter vlx model year changes

Hi all - relatively new here and looking for an '01 to '04 used malibu wakesetter vlx.

Between '01 and '04 were there any major design changes other than aesthetic i'm missing. It looks like same hull for all and just a minor HP boost to the 04 engine. Essentially, do you think it's alright to just find the best value / well taken care of boat in this year range, or is there a reason to buy a newer one?

thanks!
fred