I would agree that the hotels give the "extra points" options for business travelers to stick it to their employer. I have never done that, but I have taken the higher rate for additional miles on personal trips. When IHG hotels used to get 15% from Bigcrumbs or MrRebates, the extra $5 for 1,000 points was a good deal. But, I've never done it when my employer pays the bill. At the same time, is there much difference if you take a small upgrade in your room, say spending an extra $10 for a king room as long as you stay under your employer's limits? Personally, I think there is a difference.