I have a very large head, and I love the wings. It is the most comfortable rig I can ever remember wearing. But I can see that it would be a problem for smaller heads, though it could very well work if there was a way to scale down the size of everything above the phones. I wouldn't be super happy with rubber bands, either.
In audio equipment (as well as many other markets, such as wine) if you were to plot quality (on a horizontal axis) and price (on a vertical axis) you all know what the trend would look like: It begins with a modestly shallow slope, where you can get a good degree of increase in quality for every extra dollar spent. Then it begins to curve upwards, you have to spend significantly more to get the same incremental increase in quality, more so than at the bottom end of the curve. But the curve keeps sloping upwards further and further until it becomes ridiculously steep, in the ultra-high end regime where you have to spend 10X more to get a very very slight improvement that most people could barely hear. Mathematically, the curve becomes "asymptotic" since there is always a hard limit to quality given the technological capability of the times, which you cannot exceed regardless of how much you spend on available equipment.
Anyways, this curve plots differently for every company, each product line has its own curve (also the quality definition varies subjectively). However, the best bargains will always be found in the portion of the curve just around where its curvature begins to increase dramatically. Audio technica happens to have a curve with a strong kink right at the A900X...you get much better return on quality for spending a little extra relative to the models below it, but spending 2X and 3X or more on the models just above it yields only a very slightly increase in quality.
For the quality of these headphones, I wouldn't try to save $30, you're not on the portion of the curve where it would make sense to do so.
I'm the kind of person who waits, demand will adjust pricing curves. E.g V-Moda M-80 for $79 at Radioshack. Yes, I am going to be the first one there tomorrow