Every frame I've ever owned has been dressed out with nice threads. I see no good reason to not spoil them in that manner.

And slightly more seriously - threaded bottom brackets work really well. They are one of the more ignored areas of my bikes. (Well, until I started playing with Q-factors for my knees. Not sure press fit would have made that journey any easier and it would have eliminated those wonderful low Q old Sugino cranksets I believe. And in that journey, swapping bottom brackets has been easy. No skill required at all. Just a big wrench and a means to secure it. Home Depot stuff. Skill required at the build? The threading tool. Yeah, what $100? $150? And it's good for how many dozens or hundreds of frames? And yes, you don't have the custodian doing the tapping but don't need the master either.)