In reply to katherinec85:
I bought myself a pair of the 10x42 Prostaff 3s for my last birthday and I've been very happy with them. They have taken the place in my rucksack of my ancient Optolyth 10x40s that a generous sibling gave me for my birthday nearly 40 years ago. The Optolyths still work OK, but the Nikons are lighter, more compact, more weatherproof and the optics do seem a bit better.
As Monk says they're slightly too large to be really pocket sized (though they do fit happily in the poacher's pockets of my Barbour) but they are easily dinky enough to pop in my 15 litre going-for-a-walk rucksack alongside a thermos, a few biscuits, lightweight extra layer, ditto wind/waterproof and such. They make the difference between always having my binos with me, or sometimes leaving them at home.
I've never really got on with 8x magnification binoculars, even more so these days with my eyes not being what they were acuity-wise. But that's a personal thing.
I reckon you should be able to get them for rather less than £139 if you shop around a bit (I bought mine brand new off the 'bay for £109 last year).