Then there's this: You make a great find, record looks to be in great shape, you bring it home, and then find out that it's available on CD or digital release. No sharing allowed. I've had several of these this year, as a new contributor to the hobby. Great music, but can't share it out. Here's a few examples that I've brought home:
The Kingston Trio
And then there are the records that aren't in print digitally, but have already been shared out by others. No need to share them again. Oh well - can't remember everything that's out there. And don't feel like checking each one via SmartPhone before buying.
Fortunately, the ups of this hobby greatly exceed the downs, most notably the excitment of finding new (to me) music that is really good. Even though I have quite a few non-sharable records, I have a decent number ready to share over the course of the next few weeks. I hope you enjoy them!