Hey everyone, I just got home and was pleased to see an email from B&H that a sigma 30mm was in. I click the link, and it's out of stock. Unless they only had on in, it's astonishing that they'd all sell out in 13 hours, especially for a fairly obscure mount like Pentax K (which is actually becoming less obscure as people realize that the K digitals are great SLRs for both inexperienced and very serious amateurs alike). This upcoming summer will probably be my last without a full time job or extra high school classes (I'm on the debate team, which means I can't take science during the year), and I'm only 13. I'd like to do something fun, like photo. For both landscape and street photography, which I'm really in to right now, the 28-31 focal length range seems nice, and I'd like a sharp and fast prime. Now that it'll be a while again until the sigma is available and I'm doing a webdesign project that should pay well, I'm again considering the pentax 31, Which I can order now for $779 (with a $100 rebate, but I always do rebates). To cut to the chase, I like the 31mm because it apparently is sharper, has better bokeh, and has much better build quality than the sigma. Call me a nitpick but I like the also 31mm perspective better than the 30mm. In favor of the sigma, it's much cheaper, it's faster, and it's optimized for digital. Another nice thing is that there's no warranty involved, so I wouldn't have to feel pressured to make a quick purchase. Which is a better lens? Which is a better value given my situation?