I'm looking at getting a track bike for myself. Mostly for pacelines, rec rides but no racing. It seems there are a rash of Fixed singles on the market that are riding the Fixie trend, but if you look at their geometry, they are more along the lines of a road bike than a track bike. The Specialized Langster is an example of this and there are many more manufacturers jumping in this market.
Biggest difference between a real track bike like the Bianchi Pista and horde of other fixed/singles on the market is the Seat Tube Angle, the Head Tube Angle and the Fork Rake.
How would these different characteristics affect the ride on a track? Are the new wave of fixed/commuters that a lot of manufacturers selling now suitable for recreational track riding?