By all means play AoS, the good thing for you is that you arent wrapped up in the nostalgia of WFB like many of us are. I actually played mostly 40k and lotr I only played WFB during the Storm of Chaos campaign, it was a magical time to play i got caught up in the ambiance of it all. If AoS is your first experience then you will feel the same way about it.
if you ever want to do Tomb Kings tell me and we can work out a trade.