Can you believe that I've never played Counter-Strike? I know all about it and have seen a ton of people play it...
I do like the whole buying weapons thing. The newest COD called Vanguard has a mode in it called Champion Hill where you buy your stuff in between rounds. It is actually pretty fun, but the player count is really low in that mode. 3v3, 2v2, 1v1.
I had a time period of 1 or 2 years where I stopped gaming. My life didn't seem drastically better without it... I enjoy it far too much to not spend time gaming.