Super Smash Games (not emulation question)

[DolphinPC]

I had no where to ask so:'
I heard that those games are really fun. I love action games like god of war, Viewtiful Joe ETC. I don't play fighting games like tekken, mortal kombat, street fighter etc... Should I try it (I can get both brawl and melee for cheap so that's not a problem)? I have no one to play it with, The single player is fun? it's worth it (It's onvious to me that fighting games are better when playing with friends or online)?