I just go to Napa or O'Reillys and buy a replacement usually, sure it's like $6 to $8 but if I need the socket I need it and can't wait to have one delivered.
I figure I am saving so much by doing the job myself, I can justify the cost.
I have sometimes bought entire sets if they are pretty cheap and of relatively good quality. I thus have like 5 sets of sockets. One in the trunk, one in garage, one in shed, one in basement.
My main sets are SK and Powr-Kraft -- inherited both. So if I lost one of those, I might replace with the same brand out of sentimentality. Otherwise, the other sets, I don't care about brands. I have a couple of HF sockets on a rail with Craftsman.