To paraphrase the weather related posts;
You know you're hardcore when you realize that a forecast of rain is not enough to make you not ride. At least, say, 5 out of 6 times you'll be disappointed because the rain went somewhere else or it didn't show up when you would have been riding.
And, as a matter of fact, I wore out a front set of chainrings once. Just little tiny 'nipples' was all that was left. But I didn't save them because it didn't occur to me that that was so extraordinary.