Alright, I have been lurking on this thread for a long time, and only just now joined this forum, so I'm able to comment. Here's my story with the 721s...
I first saw the 721s while visiting Chicago last July. I stopped by Allen Edmonds with my girlfriend (now fiance), and there they were. We both agreed they were bar-none the nicest boot we'd ever seen, but I couldn't bring myself to buy them on account of the price tag. I ended up buying a pair of the original 1000 miles in Rust instead, and absolutely love them. I've worn the hell out of them and they're still going strong. But all the while, I couldn't stop thinking about the 721s. I found this thread through a Google search, and checked in regularly just to look at the pics. The discussion here made me want them even more. In the end, I decided to buy them. So last December, I got my 721s (497/1000). They are truly the best shoes I've ever owned. It's my first pair of shell cordovan - my first pair of really nice shoes at all actually. The amount of compliments I've gotten on them has been insane; almost every time I wear them someone says something. But here's the most amazing part: I've had them for nearly six months now; I've worn them regularly, and honestly they don't just look good... they look better than they did the day I got them. The leather looks pretty much unworn; the color has evolved some and the boots just look incredible. Because I invested so much in them, I've been very diligent about caring for them. I always put trees in them; I try not to wear them two days in a row, and very occasionally, I'll apply products. I don't know whether my care regimen has helped or not, but they look unbelievable. Maybe I'll see if I can post some pics here soon.
Anyway, huge thanks to everyone here for all you've posted. I wouldn't have bought the boots without this thread, and the amount of help I've gotten just reading through this has been awesome! I'll post questions and tips about mine as they come up. In fact, I'll start by asking how you go about getting your boots re-soled. Mine aren't near that point yet, but when they do reach the re-soling stage I want to be sure I know what I'm doing. Do you just bring them to any shoe repair store? Someone told me that you only get about 4 re-soles before your shoes are effectively done. Does that sound about right?
Lastly, I'll add that I too would love a pair of Wolverine 1000 miles in whiskey shell. That would be unreal!