I'm with Tyr.
I think the question is - cigars taste like cigars, and why?
The one thing I notice, any time I'm around someone smoking a cigar, it always smell like a cigar. Never like a cigarette nor like a pipe. Pipes and cigarettes are the same. None really smell like each other and each is distinguishable. But then you run across someone with a Black and Mild and it smells sort of like a pipe and a little like a cigar (they are made with pipe tobacco which helps that theory).