First time poster. I tried searching for this question but didn't really find anything directly on point. I know that the new macbooks aren't definite but with the October 14th date looking more and more likely (at least for an announcement), I had a fairly simple question. How available have past macs been on release day? This will be my first Apple Computer purchase and I'm not sure if this is something that will be hard to find soon after their release. I know that the iPhones were tough to find for a while (as I learned firsthand) but I figured that computers are a different animal altogether. Again, sorry if there is a thread on point somewhere else. Thank you in advance!