Royce
My first chipper was a Morbark 290 and they are a diehard chipper, as long as you keep the knives sharp and the anvil adjusted there good to go. Ours had the cummins 4b fires and as long as the maintenance is done on them the will last. Another option is check bandits web site the always seem to have there refurbished chippers at a decent price. We just picked up a 1890 from them on Monday that they had gone through.
Cheers
Ben