I wouldn't say I was bored with the 1520 I had. It certainly was a good little tractor, and very dependable. There were several factors influencing my decision to trade up:
1. I was not satisfied with the forks I had that hooked on the bucket -- impossible to see the tips when trying to level them and slip them into a pallet, and they tended to unhook from the bucket if I wasn't careful when I dumped the load;
2. I wanted to be able to switch quickly between a regular bucket, pallet forks or a grapple bucket (or 4-in-1). Consequently, I wanted a quick attach on the loader;
3. I wanted Top-and-Tilt on the 3-pt, and it didn't seem wise to spend the money to add it to the 1520 if I was going to trade in the near future;
4. I wanted R-4 tires, instead of the turfs that came on the used 1520 -- although, I will have to admit that I never really had any traction problems with the Titan Turfs.
5. I did want/need a little extra power for the FEL and Bushhog -- the 1520 was only 23 Hp, the TC is 33 Hp -- and I really like the improvement in visibility up front for FEL and pallet fork work.
6. Last, but not least, I currently have a contract which pays well for 3 days a week work and provides a little extra money for toys/tools. In about a year, I hope to quit the contracting business and "retire" fully, which means I won't have the income to be making payments on a tractor. By trading now, I can get the TC33DA paid off before my current contract expires /forums/images/graemlins/cool.gif.
In summary, when I added up all the "upgrades" I wanted for my uses of the tractor, it seemed to make more sense to trade than to add upgrades to the 1520. Of course, there was no feasible way to increase the Hp or lifting capacity of the FEL, anyway, and the other upgrades would not have increased the resale or trade-in value of the tractor as much as they would cost.
I can say, I am happy with my decision to trade up, and expect the TC to be the last tractor I ever buy (but I have learned to never say never again /forums/images/graemlins/wink.gif /forums/images/graemlins/grin.gif).