[Closed] How many pairs of wheels?

I've got a hardtail and FS bike both have the same gear and brake setup so my wheels can be swapped freely between the bikes.

In the garage

A pair of UST Mavic Crosslands with UST Nobby Nics for when its soft and loose.

The skinny 559x17c wheels that came on my Hardrock with a set of slicks on for road rides.

A pair of 559x21c unbranded disc wheels that I picked up at the dump for £4, I still need to strip down and regrease the cup and cone bearings and then they're going ghetto tubeless with Racing Ralphs for when its dry/trail centre use.

I think I need another pair to put some proper winter tyres on?