RPGMemes

This comes down to the niche they serve in the party.

To a Barbarian, another Barb is someone else beating things down. They can do their job more effectively together, and still have fun doing it.

To a Rogue, a second Rogue is just someone who's going to steal all the good shit from the first, who stole all their good shit from the rest of the party while everyone else slept. If you had to dedicate a full night to just quietly stripping the armor off the Paladin, do you really want some prick who's going to turn around to steal the armor you just rightfully stole‽