We have had a blast with AoS. Like others, I was someone who had fallen away from GW largely. I still bought Space Hulk when it was re-released (actually I bought three of them) and the odd other model here and there, like the new Harlequins, well the metal ones and the Wracks but not much else.
Then AoS came out last year and I loved the figures. I hadn't played fantasy since 6th edition. So I bought AoS to get the minis mostly and the game was great. Free form, narrative driven and scenarios that are fantastic. We've had a blast with it. I love that the lore is so loose and building. We have zulus in our games and saxons and all manner of stuff.
Also, fantastically, there are no points which makes arguing over rules or measurements meaningless because you set up the scenario to be fun and everyone is there to have fun and no one cares if you win or lose as long as cool stuff happens during the game.
We've done campaigns that were a blast. We have done a path to glory game. All kinds of awesome stuff. I was almost a straight historical gamer for more than a decade. Now I'm mostly doing fantasy. All due to AoS.
I've probably bought about $3,000 of GW stuff in the last year, when I had not spent that much in the previous 10 years with them. It wasn't all AoS. The Betrayal at Calth set was a huge money sink too. I got two of them plus a bunch of other stuff to go along with it.