no-limit capped games??

[smbruin22]

i noticed this was mentioned in another forum. but i wanted to ask here because the answers are so good.

i often read that you don't want to play no-limit with a player with a much larger stack... in a tournament, i can understand that... and for risk management (positive EV but you don't want to lose your whole stack), i could maybe understand.. but from pure EV point of view, i don't see the big problem.

also, i've read that sometimes guys with big stacks think they are in a tournament and throw the $$$$ around. that sounds great in a cash game where you don't care as much about losing your stack.

lastly, if i join a $200 max game, can i always replenish to $200 or do i have to wait until i hit zero? i really don't know. seems like people would constantly be refreshing, if so.

thank in advance!