The new format of Pro League is not going to make things more affordable.
Let's be honest, to fight for top spots in any contest, binning is a must since you're only as good as your samples are. These days the Pro league is mostly about binning stuff like 3770K and GTX680/HD7970, which are quite popular outside of the benching community and hence are not too difficult to resell. If you switch the focus to multiple 'obscure' platforms, people will still have to bin but will now lose more money as getting rid of the rejects will be a lot harder.
Of course, you might say that noone forces the participants to bin and one can compete with 'random samples', but same can be done in the current format as well. For example, if you have an 'average' 6.5GHz Ivy, you can easily get in the Top 20 provided you have the time to cover all the global CPU-heavy benchmarks.