I use my poker roll for my blackjack fun & most of the MTTs I play in range from $55-$240. To be honest, I do the same with the Majors when they come to town, (Reno)(5/year)($550-$1080), only if my roll can take the hit or if I cash big.
For you kids out there, don't try this online at all or live w/o a disciplined BRM.