Why so much tipping?

[Zoltri]

I always feel a sense of obligation to tip after winning a pot...but why?

A player would win $200 on one hand, for example, playing blackjack but hardly ever tips but if you win a $50 pot playing poker I feel compelled to leave the dealer $1. Whats the difference? I mean its still a dealer passing out the cards.

I know some will brand me cheap but if you play live as much as I do and factor in the rake and tips over a course of a year it can add up.

Just my opinion.