Any bike will work for commuuting, depends on what you need and your riding style.
I do my 19 mile one way commute (when I have time to commute) I do my commute on 3 different bikes.
a cross bike a road frame single speed and a MTB with slicks.
The Bleriot is a less expensive version of rivendells Saluki and yes the frame is in the $700.00 range
A saluki frame is I think $1600.00 a tad pricey in my book but ???
either will work fine but at the same time so will many other frames.
My commute beast at the moment is a Surly cross check and with the exception that the frame is too small for me its a great commute/light tour bike the cross check or SOMAs double cross frames sell for
around $400.00 , the wheel size is 700c though.
Another way is buy pre owned (Used) many bike shops take in trades and some very nice bikes can be purchased at pretty low $$$ but you have to hunt or craigs list.
have a great day
"John"