Wal Mart's profit margins are only a few percentage points, maybe 5% if they're lucky. That's the nature of retail. There definitely seems to be some utility and efficiency gains being made by Amazon. I doubt investors are seeking the kind of explosive growth or profits seen in tech companies like Apple, but rather a steady gain in market share from companies like Wal Mart, Best Buy, and whatever else you can deliver to a home.
I agree, but it seems to be a fundamentally different scenario than other companies with sky high P/Es such as LNKD and FB. While LNKD and FB have yet to figure out how to monetize their product, AMZN has a relatively simple (and demonstrated) growth plan. I think many investors are simply betting that Amazon will be able to capture significantly more of the retail market, and/or new revenue streams from places like cloud services.
Are you writing this comment from 2008? Both LNKD and FB have robust revenue streams that are growing; they have figured out how to monetize their products and they are doing it quite well.
