14bikeco custom bike

Rubbish, that depends how you build it, my bike cost just over a grand and its about as tough as you can get for a track bike, i've smacked it around like a cheap ho, hit a white van, and crashed it doing tricks more times than I can count, and the only thing I ever broke was a few sets of pedals (before I learnt my lesson and stopped buying plastic).
Personally, I would say spend what you want on your bike, you will never regret getting an expensive bike as long as it is designed for the purpose you have in mind. The last time I had a shit bike was when I was 11, maybe 12 my memories not that good.....lots of drug and alcohol abuse over the years....anyway I digress, just go for it, it hasn't got to be from 14, or from any other specialist retailer, it can be built by yourself or a fellow forum member....or whatever...
The satisfaction you get from owning a bike that was completely specified by you from the ground up is second to none, just do it.
Technically your bike is not a track bike though, but the point was incorrect