When unicode came out, there was a lot of talk that "Why would anyone want to name their files in non-ASCII characters?" Apple was the first to do it. Then Windows. Now, millions of people around the world do so every minute now. It is going to be the same with domains. Apple's default browser has supported them for years. Next year, IE will. Nobody is even going to think: Oh! There's an IDN. The fact that non-ASCII domain names are converted to unicode, will be just a technical aside nobody is going to think of at all.
Olney has done a great job making a people aware of IDNs. Some of us have owned IDNs for a few years now, (myself - since day 1) but had gotten discouraged by the lack of browser support. Others are just getting into it. In any case, when you are a step ahead of everybody, it gives you a chance to get a firm hold on the real estate.
PS: Why is there a limitation of 1 thread per 24 hours? The more active the market the better. That's economics.