Does the squeeky wheel get the grease (or in this case good quality DSL)? Well if enough subscribers get together and demand quality DSL the provider might decide to upgrade a DSL branch.

Basically the main trunk of a DSL line is fiber optics and there will be a branching station to open up a DSl branch that is made with regular copper cable. The closer you are to where the fiber optic cable is located you might get better quality DSL.

Universities are usually located close to a fiber optic line. Some hubs of fiber optics is located near businesses that has a lot of routers and internet business. Residential DSL is often an afterthought.

Net neutrality will most likely be pushed aside for financial reasons and not the need to be fair.