Just an observation. I'm not criticizing either way of doing things; obviously, lowering prices straight out is better for the customer, and keeping revenue stable while just upgrading hardware is better for the provider. Last time I lowered prices, I lowered prices directly, and just took the revenue hit. I'm planning my next upgrade now, and instead of lowering prices, I plan on giving everyone more ram/disk/ssd, while holding prices steady.
It is something I've thought about... the problem is that I'm going to have to go down by more than half, and it's way easier to lease enough hardware to more than double everyone's allocations than it is to double my customer base to make up for the lost revenue.