What? It generally only costs a few thousand dollars per month to colocate servers next to exchanges.
Arguably, it is more fair now than it ever was in legacy "open outcry" markets where the size of the floor was fixed and if you didn't get a spot on it you weren't able to compete.
Disclaimer: I've worked in HFT 9ish years (10 soon)
HF traders give the exchanges a nice cut (colocation costs, etc). Not many corps can afford it.