Maybe the most accurate definition of Bitcoin would be a ledger that grows to 1 0, base 21 million , because strictly speaking you could multiply or divide the total number of bitcoins in existence by any number you like, not just "10". The observation the OP was really making, though I'm not sure he realized it, is that you can change the base of Bitcoin to whatever you like and it's the same.
Of course it causes psychological problems, and other business, but whatever.
Yes this is my point. It's true, moving the decimal point around doesn't change anything because it affects everyone the same.
The base can be changed and it's the same <-- that was a good way of saying it, DumbFruit
Right now, I bet it would be beneficial to move the decimal place a few points to the right so that people feel like they're getting more bitcoin. That psychological effect is a big one.
As an uninformed public I'd much rather have 200 microbitcoins (or whatever) worth $200 total than 2 bitcoins worth $200 total. I bet it would lead to a lot more adoption purely on the psychological implications alone.