A large majority of vapers are either ex-smokers, or are using PVs to quit. After smoking for a long time (I did for over 35 years - and still smoke cigars now & then), you can appreciate a good tobacco flavor. For me, I can't vape sweet or fruity juices for long, but they are a nice change once in a while.
While there are few tobacco flavors that taste exactly like cigarettes, there are many that have some really good cigar or pipe flavors. I enjoy all kinds of flavors myself, but my daily vapes are either Boba's, Liqua Cuban Cigar, or Rawr's Poison....all great tobacco flavors.
Just personal preference.
I feel that cigar smokers would appreciate the tobacco-flavored liquid the most. I don't smoke cigars, so I tend to stay away from pure tobacco e-liquid. I'll vape menthol though.

