It will change a lot thought time since yo uhave to consider the current price. In the future, anyone holding something like 21 BTC may have a decent impact on the market, as of right now while we are still on the early stages, here is how I see it at the current prize:
100 BTC: shark
1000 BTC: small whale
10000 BTC: medium whale
100000 BTC: big whale
1000000 BTC: satoshi
Ok, so then this will be the visualization for the bottom feeders like most of us. ^joke^
1 BTC: Plankton
10 BTC: Krill
20 BTC: Shrimps
50 BTC: Squid
80 BTC: Sardines
They feed the sharks and the whales ^LoL^ and there are millions of them out there. We form a important link in the food chain for the whales to survive.
I am one of those Remora fish, swimming with the sharks. I eat the leftovers after they have fed and I keep them clean and healthy.
http://www.lightandsea.com/Tiger%20beach,%20Bahamas/hi-res/lemon%20shark%20and%20remoras%20fish.jpg 