You might get it two weeks later at home, or you might have to pick it up at the customs at Ezeiza (about 3 hours trips from where I lived last time in happened) six months later with a 50% tax. Other packages simply never arrived.
Between the randomness, and the huge taxes added, average people don't even consider things like buying in Amazon. And definitely not even close to a scale of how it's done in the US.
Yes, it totally is. And i didn't mean for it to have any statistical significance.
But anecdotal data can help. I took the "risk" of buying books on Amazon only after asking other people about their (totally anecdotal) experiences with it. And now that i've had a good experience, i plan to keep using it despite the known problems. YMMV.