We wore out a 530 and a 566 JD, both good balers, but as they aged we needed to be sure to have both sizes of bearings on hand. Bearings go, they are never better than the first day and then it's a matter of time.
We have a 605N and there is no comparing the ruggedness of the two makes, everything is heavier on the Vermeer. Only about 6000 bales through it so far, but it is a treat to bale with for sure.
It used to be you could get the bearings for a Vermeer over the counter at any bearing shop, I don't know if that is still the case.
The monitor on the Vermeer is really nice, you can enter in your fields and have it keep track of bales by the field, including moisture and weight (if you have the on board scale option) and even download the information onto a usb stick.
We haven't even had to replace a pickup tooth yet.