Generally, the less obtrusive (and more natural) a pipe is, the better and more expensive it is, since the pipe will grow darker with time and also breathe better. Natural tints have alcohol as a base and are usually natural (as opposed to chemical); these tints are usually light orange, yellow, brown, etc. Other less natural and more obtrusive colors, such as dark red or brown, are used, and are usually associated with machine made pipes as well as low-end hand made pipes. ("Painted" pipes are in a class of their own.)
Prossimo articolo: What‘s the right way to light a pipe?