ok turn call?

[Net Warrior]

1st hand of the night. I'm in bb with ATo, folded to the co, a slightly above average player I've seen before. He raises, folded to me, I 3 bet, he calls. Flop comes Q98 rainbow, I bet out and he calls. Turn is an offsuit K, I check, he bets, I call. The river brings a J, I bet, he calls, and of course my hand is good. Afterwards he complained that I shouldn't call the turn with a gutshot but I countered that I had 3 more outs counting my Ace.

On my turn call, I'm getting 5-1 pot odds and with 7 outs I need 5.6 to 1 odds to call. I figured that if I hit an out I'd collect another bet on the end so I called. Thinking back on it now, I guess it all depends on whether my Ace out is good enough to win. Comments?