Peter Taylor wrote:

> I find that one sip can be used to rule out a bad wine, but it's not
> enough to fully appreciate the good ones. In other words, wines that
> are merely good upon sipping at first later get better the more of
> them I drink (i.e., don't spit), while others do not
> So, it looks to me that to fully evaluate a wine, one has to drink it.
> So, it looks to me that to fully evaluate a wine, one has to drink it.

I pretty much agree with everything you have said except the last sentence.
I go to a lot of tastings where between 50 and 1500 wines are poured. I
spit the wines that I think are not worth my time. However, I often find
after spitting that I have second thoughts so I sip again and try to
remember to spit.
There is a fine balance that we all have to find of evaluating the wines,
enjoying the event and remaining upright. (at least until we start our drive
home ;-) )