I can see your point but how can you tell if it is a crap pub with poor beer if you have never been in ??
I am with Arwkrite on this - I find it almost impossible to walk past a pub if it is open. The only thing that would stop me is if there are too many pubs to get round - then you have to be a bit more selective. I have had many pleasant surprises over the years - although it has to be said that some pubs are " exactly what it says on the tin " !