I bid $50. You bid $100. I check the listing and see I got outbid (it's at $50.01). I decide I'm actually willing to pay a little more, so I hike my bid up to $

I bid $50. You bid $100. I check the listing and see I got outbid (it's at $50.01). I decide I'm actually willing to pay a little more, so I hike my bid up to $70 to try and outbid you. Doesn't work, and now you pay $20 more than you would have I'd you'd sniped and I didn't know I was going to get outbid.