Well that depends. Do you want to re arrange your collection and only collect the shape 55? Do you want to make all your other pipes feel unwanted as you always reach for the shape 55? Your call.
I smoke my shape 55's more than any other pipe shape in my collection. I smoke Virginia's and Virginia flakes. My shape 55's are smoking machines! Out of 17 Castello's, 6 are shape 55's.
Michael J. Glukler