I understand that there are a lot of flops that have characteristics which make some think they were hits - a lot of Sondheim works are a good example - but those specific productions never managed to make the investment back, which means that financially is the only way to determine hit or flop, because we have numbers.
For what we know, Brooklyn, In my Life, Lestat, etc. were all great hits in a lot of people's heads , but the fact is that the production was a business/financial failure, which somehow reflects the lack of interest for that specific staging (call it wrong, place, time or whatever), there was just not enough revenue at the time - and this technically has nothing to do with the quality of the piece, but it does reflect the box office sales, which means they never had enough appeal.
They might have kept the show alive for 5,000 performances, yes, but you don't know at what capacity and/or cost. Obviously, never enough to make a profit.
But if we were to go by our own opinion, then the thread will be full of "I don't think that Lestat was a flop, because my family really liked it, and when I saw it everyone was clapping very hard". :P
Listen, I don't take my clothes off for anyone, even if it is "artistic". - JANICE