Thomas Shey
Legend
Probably an unspoken reason why HERO resonated with me so well is that it can do broad and tall advancement simultaneously. It’s literally up to the player which path they want to take, and they can change with every time they expend XP for improvement.
I think in a lot of campaigns its true that tall advancement can be overly attractive in Hero, however, especially since advancement costs in each area are linear. That's why there usually are secondary capping mechanics.