I guess that depends on the type of game you play. I tend to play characters that reflect their attributes even if they aren't class relevant. I dont know about cheating to have an attractive character but I'd think that if having an attractive character is important then you'd just put an 18 there if i rolled an 18 because it was relevant to the character. Charisma is an important stat for clerics but mine has a lower charisma than he has str, con or wis and its the same as his dex. its all relative to play style in my opinion. Which is why I've gone over to letting people use a point buy, means you can choose whatever you want the stat to be. had someone play a paladin with a con of 8 and used padded armor. awesome character.