It's also louder on the highway than the MK6 Golf.
By the time you sell and pay sales tax again you are going to negate much of the money you are trying to save.
Just go easy on the gas pedal on the highway and mid-30's is what you should expect from your GTI.
I looked for 2 months and found a well taken care of 1998 Jeep Cherokee 4X4 w/ 100k miles for $3,450... in 15 months it put me out of pocket $50 for two oil changes.
Sold it last month for $5,400.
Funny thing is it was more reliable than my MK5 GTI for the last 15mos I had it.
I just bought a $6,300 70k mile one-owner dealer serviced 2001 Maxima SE... its amazing the cars you can find for $4k - $7k if you are patient.
g/l with your sale.