Mine is going to be about 1300 per month for DH and I, vs. something like $200 per pay period (2x month) while on severance. It's more expensive than most non-subsidized plans, but it's also far better coverage, lower deductibles, network issues, etc.
I believe most states are the same, maybe even a federal thing? Cobra is available for 18 months after company paid medical, regardless of termination reason. I'm on severance now, and will still be able to Cobra at the end of it.
Given the uncertainty in the HC situation, I plan to take up Cobra in August when my severance ends, and keep it thru at least 2017. Swapping to a brand new plan mid-year would mean my deductible contribution would start from scratch, but mainly it's just nice to know I've got the same comprehensive coverage, docs, etc., vs. shopping for a new plan mid-year and then having to potentially do the same for 2018.