I never understood the cap limit to 1 buff/day. There are other more overpowered methods to win everything at this game than to buy more then 1 buff per day. There is nothing more frustrating than having to use only one out of 2 or 3 necessary buffs... it's not like if the cap gets removed someone is going to get level 500 in a blink of an eye ..
My suggestion would be to increase the buff per day limit to 2 or 3, this would make the game more enjoyable.
Respect