In limit holdem even if you are willing to bet more than a normal super-aggressively it is not going to be possible for you to be doing that, you are supposed to play within the set high and low limits.  It is for this reason bluffing in limit holdem is going to be lot difficult than on other betting variants.  In cases you want to cut competition and play the second best hand, you might not be able to bluff and have your competitors out.  There will be many players that will be betting in limit holdem based on the yet to come kind of hands!

In limit holdem games there is no need to keep players in the game by offering extra buy in or rebuys.  Most of the limit holdem games are those without a rebuy because the higher limits of betting in such cases can be predetermined and buyers can usually plan time ahead the maximum number of chips that will be needed.  Also, limit holdem games give best results when they are played straight rather than with bluffs.  The result of bluff can still work winnings, but bluffs are less worthy in limit games when compared to no limit games.