I tested out how long it would take to open every program on the dock (except iChat) on a school library computer.
It has a 1.42 GHz processor and only 256 MB of ram. It took about 20 minutes to get everything up. After it was all done, every time I tried to minimize something, it would take around 30 seconds to do it.
This was just a random experiment I did. It did not really have any meaning to it at all..