My R72 has 16 fuses, I belive and I could place all of the electrical boards in a laundry basket and still have room. Cats have been here for 4 or 5 years now, so I doubt you see many with over 2000 hours. The JD's Gleaners and Case combines you see in the junkyard are probably 20 years old. I have nothing against the Cat however, I think the maintenance will be more than any other brand at 2000 hours and unless you can do the work yourself, the local dealer here will charge you at least $85 per hour(called and asked this morning). The other local dealers charge $30-$50 tops.