Todd, I had a small crack in my boots that I didn't know in them a few years ago... not until I walked through some of nastiest, most brackish water I'd ever seen to get to a new spot I wanted to hunt one day. Two weeks later... experienced the most painful thing I've ever felt to date -- a Plantar's wart on the bottom of my foot. I had no idea what it was until I went to see a podiatrist because I almost wanted to cry with every step I took. Yep, I let it go way too long... but the point is, watch it if you have to walk through any water with those boots.
A pair of new $45 Grange LaCrosse boots are VERY well worth it.