Hi Starkeeper: It's gotta be a tough decision and probably depends on two or three major factors: 1. Money; 2. Purpose: 3. Resale (if you plan to upgrade soon)
I use my 2000 for it's intended purpose, arranging and writing new songs. Sure, there are newer, fancier models out there but for my money, the 2000 still has alot of life left in her considering the difference in cost. BTW, I do use the harmonizer to help mask my miserable voice. Good luck, you can't go wrong with either unit.
Rice