I have 3 and thought I'd get 4 as I have a special rack for 4 churchwardens...
But I hardly ever utilize them.
Then again, I'm hardly ever sitting... it might be different if I was sitting with a book indoors...
I have a Stanwell Hans Christian Anderson VII smooth bent egg churchwarden. Came with both standard and churchwarden stems. Smokes great with either one, but I definitely get a cooler and dryer smoke when smoking the longer variant. I am interested in getting one or two more at this point. A regular size bent bulldog is my favorite overall pipe so far, but variety is the spice of life!