Put it this way. At this point I do think it would be silly to buy the old model because chances are the new model will come out this week. Would be worth it to wait this week.
I know you say you don't want the new model, but even given your reasons, here is why I'd wait.
1. You don't know for sure what they are going to release. What if they release something with a good graphics card?
2. Even if you do not like what they release, all the sudden the model you want is worth less and you'll be able to find a good deal on it. You might (I say might because maybe they won't release the new models this week) save some money by waiting a week.
As for poking fun at the 13" size, I am completely with you. I don't want a bigger laptop, the point of a laptop is to be portable. My laptop plugs into my 21" screen just fine (much nicer/bigger than a 17" screen

) and when I need portability it's a lot more portable than a 17" or even a 15". Best of both worlds

. The only issue I have with the 13" is most companies seem to think if you want a smaller laptop you don't care about capability (there are a few specialty laptops that address this but unfortunatly, all Windows running ones). Just cause I want smaller doesn't mean I don't want it to be able to do a lot.