Amazon is on my watch list as well but I will say that from a personal perspective in the last year Wal-Mart has gained ground on Amazon and maybe even passed them up at least in the online shopping aspect.

The last several years I done most of my Christmas shopping on Amazon. But this year more than half (almost all for my kids) was done on Wal-Mart. They had better prices on nearly everything. And the things I ordered got here faster as well even though I'm only 20 minutes from an Amazon center.

They also do the in-home grocery delivery which Amazon doesn't do in my area.

I know Amazon is more than just the retail aspect and there is more than enough market share for both companies. Just something I'm keeping my eye on in case my experience isn't unique.