Besides, who wants to pay the price for 22 mag ammo? Almost as much as centerfire ammo which you can reload.
The FN 5.7 is a great gun to shoot but reloading it has its quirks. The price of factory ammo has not really changed even through the whole ammo shortage. Still around $20 a box.
There is a nice used one at the shop but it is still way expensive and I still can't figure what niche it fills for regular Joe shooters. I hear a lot of Women like it for a self defense pistol as it is lot and little recoil. I'd like one just for the cool factor.