mountain equipment 500 £200
Crux 500 £550
alpkit 800 £200
these are abuot the same spec as the eurohike
the only other one That springs to mind is the
Rab Infinity 500 300g lighter 5 degrees warmer, down to -9 all for an easily renewable price of £400 quid. I'd love one, but for the ammount of time I'd use -9 insulation, it would be cheaper to stay at the ritz and is a pound sterling a gram a little bit of an adiction !
As for the down lasts , it does, my auntie and her husband when he was alive, used blacks of greenlock(???) downbags, purchaced in 1960. Always treated well, dried, used in canvass tents and made primarily from feathers and not down, worked well when I borrowed it a few years ago. Its lost some loft, but was never packed damp or misused by being in a damp environment, never in condensation ripstop tents, so it never rotted!
You've got to remember too smow isn't a humid environment unlike britian or the tropics
edit:
or the lower rab is the
infinity 300 -2 650g for £350
so much lighter but less warm.
The point being you seem to have to hit real cold weather bags before weight saving comes into play.
If you say a weight of 750g in comparison, is it worth 200 quid for 400g every year or two, after seeing the last bag rot ?
Edit:
a bit more info
eg 1.
rab acent 500 -5 1080g £200
mountain equipment x zero 550 -6 950g £360
eg 2
rab infinity 500 -9 875g £400
north face Blue kazoo -9 1120g £200
the point being is 250 g worth 200 quid ?