Spawn shops provide a easy way for new players to get started with materials. Newer players may not understand how web trade works or even know about it. Spawn shops also let people buy items with stuff other than diamonds letting newer players (and experienced players wanting to conserve diamonds) buy stuff.
I do think the spawn shops need a sort of "refresh", there's still shops from players that haven't been on in months. Also, why cant we still use the oc shops? They would suffice for the extra demand for shops.
So, i don't know if this post will change anything but I think the spawn shops should stay.
