I am looking at trading our 2001 2388 in for a new 2377. There is $5500.00 difference between the 05 carryover vs. a 06, that would have to be ordered. If we run this machine for 5 years @ approx 250 hours / year, how much more would the 06 vs. the 05 be worth on a trade? Also, would the 06 with the electronic fuel injection on the be a great advantage? Thanks for your thoughts and comments.