You shouldn't be calling with your premiums in most spots because you're allowing other players to call along and see a cheap flop with suited connectors and pocket pairs hurting your hand's equity and giving you lots of cooler spots you wouldn't have to deal with if you had just raised.I often only call with AK, but at the other hand I also like to play all in with AK. Often I win the main pot, but not always. I wouldn't raise all in when it's late in tourney for example. But there exisists positions to raise all in preflop.
You shouldn't be calling with your premiums in most spots because you're allowing other players to call along and see a cheap flop with suited connectors and pocket pairs hurting your hand's equity and giving you lots of cooler spots you wouldn't have to deal with if you had just raised.