Walmart sells everything

Part of a conversation I had today with one of the workers (all in Spanish of course):

(We had been doing stretches at break)

Alfonso: "Do you like yoga DVDs?"

Me: "Maybe, I dunno. Why?" (Expecting him to say, oh I have some I could give to you)

Alfonso: "They sell them at Walmart."

Me: "Oh, thanks...."

I had to try really hard not to laugh because to me that was really funny, but he was totally serious.