While I concede your point, I like that it's a consistency that carries over from the bigger contests. Having a salary cap in some events, but not others becomes a bit wishy-washy if we come up against a medium, rather than big or small comp.
Having said that, I'm clueless as to how big the fields will be in coming events, but I like the consistency of the salary cap being there for all comps.
There may be an arguement down the track to create an "artificial" cap, where we manually adjust the price up and/or down some players, to even the field out a little.