I also have a Tungsten ring. I wear it all the time, even in the garage when handling tools, getting down on the concrete floor, and working on engines and other such things. It still could pass for new to anyone not looking too closely. If you take time to really inspect the ring you will see it has sally niceome minor scuffing after years of being knocked around, but it has held up remarkably well.
It is true that you can't resize the rings, but they are also significantly cheaper than precious metals so replacing one with a different size may be about as much as resizing a gold ring (depending on the price of gold and whether you are going up or down a size). The other thing people forget is that gold or other soft metal rings wear over time and have to be replaced. The metal wears off on your skin and also due to handling things - and they don't have to be abrasive or particularly hard, gold is a very soft metal. Most people will have multiple wedding rings throughout their life.
Sorry for the ring being slightly out of focus, I'm still getting used to my new potato.