i'd guess, most "lost tools" end up in a co-workers toolbox anyway, so those $ 35.000 are probably exaggerated. then it's more about organizing and making inventory once a year. and if it's about theft - put rfid-tags into the tools, and cover the exits with scanners. that's cheaper and less prone to fail than lots of expensive toolboxes with embedded computers (btw. - i'd steal the toolbox as a whole, if they were that nerdy)