Not all lagers are the over-fizzy, flavourless chemical brew served up in plastic pubs the length and breadth of the country. There are some wonderful craft lagers and properly brewed traditional lagers out there waiting to be explored and enjoyed. Just saying!
You are of course quite right, but when I go into a pub and there's a choice between some unknown lager which could well turn out to be fizzy p*ss and a proper real ale like Old Dogfondler or whatever I always tend to go for the familiar favourites.