In late 1999 the hedge fund I worked for was building out new data-centers in Boston. Greenwich, London and Singapore. After lot of deliberation I ordered a pair of 6500s with Sup720 for each site even though they were new at that time. Since then I have changed job 3 times but from my acquaintances at that hedge fund I know they still continue to use 6500 albeit with new line cards. These switches are amazing and I am proud to have been one of the early adopters of this product line