Great advice from btburner and JohnE - what do you want out of the new boat - what is your current boat lacking.
the Maristar 225 is a very nice boat - Are you thinking get something new - If everything is structurally sound - you could do a lot for a lot less than $20-30K - but then that would be a plan for keeping your boat long term.
If you do plan to keep your boat - I would just start looking for parts that are harder to locate to have them on hand.
If your thinking to buy new just to have newer - newness wears off quickly and then you'll be 10-20K lighter just my .02
...A bad day water skiing still beats a good day at work...1995 Pro Star 205....