I bought a kincade grackle as an experiment before I spent loads on an english leather one, have to say I never bothered replacing it. Just take the effort to oil it well before you use it, and looks quite good.
shires do nice cheap ones... look on the barnstormers website, I bought a hunter bridle off there and its very good. In fact better than a £50 bridle I bought from elsewhere
I bought a heritage bridle few years ago,never heard of them before but by god it has been a good cheap english leather bridle(£40)(still want my sabre bridle,and will have it 4 xmas this year,lmao)!!x