Pitching stuff at 145 limits the amount of people who can play it
you`ll only get the real hard nutters, and the hard house pants wearers playing it.
Things are slowing down these days, besides, there is much more room between the beats to allow the sounds to breathe when you slow it down.
If you pitch at 140.
The funky groovers can slow it down for their 135 bpm stuff, and it won`t sound wank
and the hard and fast kids can speed it up to 145.