[pbreit]

But PE is obviously the wrong metric for Amazon since we know it reinvests all its earnings and has proven ability to convert investment into cash flow.

[throwaway2048]

Or maybe it isn't? And the plan of theirs isn't going to result in huge profits, ever.

[BubRoss]

Profits reinvested into successful growth is still profit.

[dodobirdlord]

Seems unlikely, it's not as though their core business lines are unprofitable.

[s1artibartfast]

Do you think their core business lines have room to grow 400%? Alternatively, can they cut costs 75% with their R&D investments?