Just get the light first ($164 for the Fast Track), then add the Pila later. It will still run fine at reduced output on a single CR123 w/spacer (aluminum wad, etc., anything) and all the features will still function (two user modes, 64 levels, smooth dimming etc.), just not as bright until one day you decide to run all your lights on rechargeables, at which time a Pila setup would be a great investment anyway. And at that time the nonexistent battery cost will begin to pay for the Pila set, as well as eventually even the light itself.
And yet -- it is important to remember that Jon is giving us these Pilas at near his cost right now, and I am simply passing this special price directly on to everyone...but then even paying the Pila retail price eventually down the line, it might be that on this future date you could more comfortably afford it (~$72 vs. $55 now).
Actually I have no idea what I am rambling on about, it's about 1:30 a.m. here for me ... g'night Neg ... zzzzzzzzzzzzzzzzzzzzzzzzz ...
