I've a pair of Opticron, imagic, 7x42 porro-prisms (i.e. "dog-legged" shape bins) that you can buy new for just under £150. I've also got a pair of Leica Ultravid 8x42 roof-prisms (i.e. straight cans)... that you can't buy new for much less than about £1580. To be honest there's almost nothing between them... I depend on them daily, in all light conditions, at all ranges... for stalking and a variety of property management purposes.
If you want the sexiest "best" ones spend your money on Leica, Swarovski, Zeiss or the likes... but if you want good value, good quality, servicable kit... go