I probably had 30+ estate pipes of varied brands before really discovering the Peterson system. Now, a few years later, I'll currently only buy Petersons with a P-lip, nearly exclusively bent, and mostly a system; although a Sherlock Holmes or other special item will catch my eye and sometimes slip in there.
I have about 30 Petes in rotation, and 20 or so new in box for down the road.*
I have definitely been bitten by the Irish mosquito.
But I am getting pickier even on those. I'm finding nuances about my preferences that will have me letting go of certain models. For example, I've found a 312 or 307 doesn't generally work well for me.
314's however, are perfect.
*In the beginning I purchased more estate pipes, and often rusticated because I had concerns of various types of damage potentially occurring, like rim scorching, dropping, or whatever. Now that I'm further along the path I've begun buying "newer & nicer" that I'll be enjoying down the road...
Cheers