Build or buy, more of a conversation than anything.

I started the fixed ideal on a recommendation from someone here. Keep it cheap.. see if I like it. Got a cheap frame 15 dollars, 100 dollar wheel, 50 bucks in misc parts. I like it. Frame is small. Find different frame, 65 dollars. Cross over parts, add items to make bike "work" 60 bucks. Outfit bike to make it legal for base use.. 50 more dollars. Tires 30 dollars. So, roughly 370 dollars over the last few months on the bike. I'm not poor, and it's been over a few months, so it's acceptable.

Last night, I go for repairing the bottom bracket after it loosened up on me. New bearings, grease. Putting it back, you can see that the cup is loose in the BB. This doesn't bode well for the future of the bike. So, I'm now kinda keeping' an eye out for a new frame.

But honestly, for the dollars, it seems to be a band aid. I could buy a Bianchi Pista, or Fuji for around 500 dollars, throw on some parts (that I have already now) and be done, and there'd be no issues. And it'd be new, so less likely to have problems like I'm going through.

So, I'm kind of caught.. Build.. or buy..

Opinions, thoughts?