I just googled average home attendances for Bournemouth AFC and was staggered to discover that it seems to be around only 11,500. Surely that's not correct and can't sustain a premier league team?
Look at Villarreal, (town of 50 k,) ground capacity 23k regularly play in European football , buy good players sell on for a huge profit and have made a profit each season for the last 5 seasons .
Brentford and Bournemouth are still objectively tiny clubs though. Would be interesting to see one of them get to Wembley these days - would they even sell out their allocation?