Too many practice amps?
What you need is a fresh way of thinking about your plethora of amps. I recommend that you buy an AMP switch, something that will allow you plug your one guitar into multiple amps at once. Then, practice with ALL of them on at once.
This is known as the Quantity vs. Quality method of playing. If you use enough of them, you can blow windows out with 5w and 10w amps.

The deLisle ABC Amp Switch allows you to connect 3 amps at once. Daisy-chain a few of those and one guitar could power through to 9, 12, 15 practice amps! Mwuhahahahahahahaha!