This lens has always been dead to me, given I own a 24-70mm f/2.8L. So it can go away quietly for all I care.
That's the point. Lenses like this are dead to us, but they are also dead to the masses. I really do think that almost all of the consumer grade primes, except for the gateway nifty-fifty—will disappear. There are too many options for consumer grade cameras and a DSL + cheap prime is a loser in the marketplace. People who know about primes know about the good stuff and are more likely to be willing to spend to get quality glass. People who don't know primes think they are some kind of weird, hobbled lens from the 1950s with no possible use. To an extent they are right. The 28-135 is f3.5 at its widest. That's only about half a stop, you get USM & IS, you don't pay a ton more and you have way more versatility.
Nice honeysuckle, though.
Personally the sub $500 primes I think are great for people with rebels and who are JUST getting into photography and want to get a decent lens but don't want to spurge. I'm in this category. I figured out i wanted a 35mm prime lens but the f/2 is just horrible build quality ... and well f/2... If there was an f1.8 35mm for around $500 i'd have gotten that (i.e. to compete with the sigma 1.4 30mm). But instead i just got the 35mm L. Def. more lens than i need though.
The super low quality 1.8 50mm and this f2 28mm are really at the low end of teh spectrum, but you also forget that there are alot of kids that try out photography in HS and college and at that point those lens are great price points for them. They just need to be updated is all.