I've gone through 4 different powder coaters, one went out of business, one moved out of the area, one is in Kansas City, the other is local and still in business (I think, we'll see hopefully in a few months.
All of them did at least an acceptable job. If you find someone that does a reasonable amount of bicycles, they'll probably do a decent job. Two tone, masked jobs, decals and clear coat are a different level of skill.
You're best off finding someone reasonably local to you. I do know that there are a lot of areas that just don't have anybody to choose from. If you need to ship a frame, Groody Brothers in Kansas City isn't too far to ship to from Milwaukee. I'd recommend them.
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If someone tells you that you have enough bicycles and you don't need any more, stop talking to them. You don't need that kind of negativity in your life.