Charmeleon also wont ever be evolving, because Dinosaurs are cooler than Dragons. ^^ *flees from rabid Charizard fans*
Off topic:
;006; :What!? I'm way cooler than a Charmeleon!
Doesn't mean he/she has to evolve a Charmeleon.
;006; :Sure, side with him/her.
*sighs*
On Topic:
I, personally, will evolve any Pokemon I get since they get stronger and to fill the pokedex. But the former reason is the one that drives me to evolve them more.