Here is an interesting chart (as of 2/6/2014):

Obviously most people (myself included), that hold a decent amount of BTC are holding them in different wallets, however the above chart shows that if your btc wallet address holds more than 0.01 BTC, that you are currently in the top 1% of the bitcoin richest addresses.
This is an interesting distribution chart, as the number of addresses holding 1k or more bitcoins is very small in comparison to the world's population. Where do you sit?