im just going to get a bunch of 732's, then when all the routes are already made i will buy a bunch of 742's. 
I bought my first 747 this morning (only a -100; I figure I won't require the extra range immediately) and plan to keep ordering them daily for the forseeable future. I still have quite a bit of use for 732s, mind you, but, I my DOP is high enough to keep buying those en masse as well. The way I see it, in a week's time, regional options will be running thin,... and I'll be happy to have the steady pipeline of 747s rolling in. Sure, planes half the size cost half as much and show up in a mere 3 days, but I have no problem waiting for the real deal. Only time will tell if the cash outlay kills me in the rankings.