I would not play WoW if raiding was gone. I won't touch other games that don't have it either. It is the reason I play MMOs.
Everything I do in this game is to best prepare for the raid tier to come. My goal in WoW is to push as high as I can when it comes to guild rank.
Note: Eventually there is a ceiling when it comes to competitive progression raiding. I simply look to beat all other guilds that raid a similar schedule. The icing on the cake comes when you best guilds that raid more than you.