I think this is a very useful database, actually. It’s very nice to be able to look in one place for the weights of items that I don’t already own. I weigh my own stuff of course, and keep a spreadsheet (using formulas, macros and VB to get subtotals for various other slice-and-dice needs), but finding the weights of gear I don’t own is a hassle. In some cases it’s not even possible as the manufacturers don’t always give that information.