Aye, but I feel a bit of a ****** round someone's house when they ask if I'd like a cup of tea and I ask what they have, which is invariably PG, Tetley, Yorkshire, or some other tat. I then have to turn it down or grin and bear it, where once upon a time I'd guzzle anything gratefully. Though sometimes I turn up with a box and pretend I've just been shopping. "Have you tried this tea? it's dead nice." The buggers just tend to drink it though and the next time I'm round they're back on the crap - probably because they've bought 1500 bags for £2.56.
I have the same problem with beer. Ignorance was bliss, even though it tasted like ****.