I try and buy albums at shows mostly! They don’t put ridiculous markups on stuff at small shows, but some venues want a cut of merch sales too, which is why I’m assuming some venues you can’t get a band shirt at for less than 30 quid. I could be wrong about this if course, but I have seen it at bloodstock where bands were literally just chucking merch off stage because they would have had to pay hundreds of pounds to have merch up in the festival shop.