Yes there is a strong reason for us, and probably others, to maintain this information. Like most people I, and my managment team, want to know the total cost of operating an asset. Just knowing the initial costs and the depreciation associated it with it is only small part of that picture. You need to see the operating costs associated with it as well. Do you have underperforming equipment or is it performing as expected. This report would also help you cull lemons in your fleet and the like. Personally I would track all costs, gas, licenses, repairs and maint, etc as separate categories, but could be as simple as just repairs and maint to see how much extra we are having to put into this asset.

Seeing at a glance in a report is the best way of doing that. We currently maintain individual paper files for each asset and put the various expenses in there. We have also tried, but not very well, to maintain this info in an excel file, but the human factor gets in the way with this.

The best place to capture this info really is at the point of entry, and would involve the least effort. To me this is a no brainer, I have been at a number of companies now, and responsible for Fixed Assets as a part of my job at each of them. And in every company, at some point, management asks what these costs have been over X period of time for at least individual assets. Everyone sort of remembers problems with this that or the other asset, but memory is a poor way to run a business...