Need your opinion

Hello All,
I am considering trading in my 2001 2720SL for a newer TM. Lucky for me I live about 5 minutes away from a TM dealer (Spring Cypress RV, Tomball, Texas). They have a new 2004 2720SL for $20,750, and a used 2003 2720SL for $17,500. Are these fair asking prices? They both have the standard oven, A/C, awning, and swing away hitch. Neither have the hanging cabinet or micro. stand...both of these are in mine and I like having them.
If any of you out there traded in your 2001 for a newer model would you tell me if the upgrades in the newer models were worth the trade-in.
Thanks in advance,
Red