How many systems do you have?

I have three currently, but have enough pieces not being used that I could set up a 4th, at least.

I know, it is an illness.

Currently two systems, with enough additional components to assemble at least two more. Some horde TP, I horde audio. Okay, I'm seeking help... 

Two or four depending on how you want to count them. The main system includes two integrated amp/speaker pairs for streaming to other rooms. Then another analog only system in the guest apartment.

Five systems all but one is tube based. Oops, six...

main. bedroom, downstairs living area, workshop, bluetooth front veranda