Yeah the vest is re-usable (as long as the airbag doesn't have a hole in it), $20 for a new CO2 cartridge and then just pack the airbag tube back under the snaps that hold it in and you're back in business.
"All that is gold does not glitter,
Not all those who wander are lost;
The old that is strong does not wither,
Deep roots are not reached by the frost."
'12 690 Enduro
// 690 Wiki