I've found armypainter paint brushes can take a lot of use/abuse and still be good afterwards. If anything, invest in a brush cleaner (I have "The Masters (brand) Brush cleaner and preserver"). This will help out your brushes a lot and lengthen their life, no matter what brand you get.
Looking for work....
Current project(s) with plog(s): None ATM
Upcoming project(s): Plague Hulk
Recently finished project(s): Warboss 2
, Lord Hector Rex