I stepped up in size, power, quality and value. I bought a used 2003 TZX-190 in 2014 and fishing out of it for 5 years. Then I traded it in plus cash that I saved toward my 2012 721 this past fall/winter. Basically paid cash for that one with a small amount financed for updates on electronics and TM. I Plan on paying it off within 2 years and then in 4 or 5 years if I decide to buy new I will have a nice chunk from selling my 721 and what I will saved by then to pay cash or nearly pay cash for a new one. For me I couldn't justify a large amount of debt for a toy. Don't be afraid of a well taken care of used boat either. Get good insurance that has a mechanical failure rider to give you a little piece of mind if the boat you buy is just out of warranty. See Bob Luellen at World Wide Marine for that. They are one of the BBC sponsors and there are a bunch of threads on the subject.
P.S. Jeff at Lake Drive Marine in Coldwater Mi was very fair with me on my trade. Good people there.