These are my experiences in small grains, for what there worth.
08 8010 400hrs in hard red spring wheat, barley, canola, oil sunflowers and flax.
Replaced lower sieve actuator (failed and wouldn't adjust), the hydraulic motor than runs cleaning fan ( small leak around seal).
All was done under warranty the first year. Never had a stop for anything in 09 harvest.
Have not replaced a chain, belt or any other wear item. Adjusted the clean grain chain a few times, will have to take out half link next adjustment. Never had the feeder chain slip a cog, in fact I only adjusted it once in the whole season.
The smoothest, most trouble free, piece of equipment I've ever owned. Alot of little things that bug me about it(Won't go into detail unless you request it), but I will never go back to an 88 series after this.