Quoted from jawjaw:It's pretty satisfying to fix a bunch of problems and get a pin looking far better than what you started with.
I’ve found that one of my favorite parts of this hobby is diagnosing and fixing problems, as well as improving looks and playability. I’ve got all EMs, but I think a lot of SS guys also feel the same way. You learn and keep improving. (I wish my playing skills were like that!) What now seems like a negative may actually be a positive.
Also, I’ve found that once I get a pin working well during my break-in period with it, the maintenance issues generally get fewer and less frequent.