Do you have the card reader and ram upgrades done to your XL? If so, do you find that you run out of memory while you are doing your projects? Or do you think that you need more space than 2GB with CF Cards? If not, I would say do not upgrade!
I had a MPC 2500 until 2 weeks ago when it got stolen out of my car! I did not have enough cash to buy another one, so I picked up a used 2000XL and it has the card reader option and 32MB ram and I gotta say, I never utilize all of that! I had the DVD/CD-RW Drive, Card Reader and 80GB Hard Drive in it, but I never used anything but the card reader which I still have with the XL and I used the Hard Drive to store about 1GB worth of drum kits, but I could have easily had another 2GB CF Card to cover that.
I am not going to lie though as soon as my insurance gets me my check next week, I will buy another 2500, but that is just simply because I am so intimately familiar with the in and outs of that machine and I really dont want to learn the differences! But, if I had a 2000XL initially, I would not upgrade to the 2500, just because I would be used to it and comfortable with it, and I have already established that I dont need the upgrades, in fact, my new 2500 will not have the HD or CD/DVD Drive - Just dont use them!
PEACE and I hope that helps?
kcsherrell