There is 1 rule for not buying in for the max and that is if you're playing short stack strategy when buying in for 20 bbs is enough. Otherwise buying in for the max is +ev. If you're scared to lose a buy-in then you're not properly bankrolled for that limit. If you're losing too much with a full stack then you're involved in too many hands you probably shouldn't be involved in or perhaps chasing too much.
What I really dont understand are those who buy in for 40-50 bbs, can anyone explain this because as far as I'm aware, there's no such thing as a mid stack strategy. |