Many reasons.
First of all, it is not cheaper. It may be cheaper for young people because ACA marketplace rates are age dependent while COBRA rates are not. It is not cheaper if you are over a certain age, it is significantly more expensive.
Secondly, many ACA marketplace plans have narrower networks. (Which doctors are in-network doesn't only dependent on the insurance company, it also depends on the network, and insurance companies have multiple networks.) In WA, check out Regence's network for ACA plans--most hospitals are excluded, while their regular plans include them.
Unlike COBRA which almost always includes out-of-state doctors and hospitals, ACA networks don't. If you get a rare disease for which the expert doctor is in another state over you're out of luck.
And lastly, ACA rates just went up 20% in many states. If you are a couple in your 60's, you will pay nearly $45,000 for health insurance and then pay $7,000 each in deductible before insurance kicks in. At these rates, most healthy people will decide to forgo insurance. Which will reduce insurance company profits, who will then raise rates even more. This is a death spiral, and ACA will collapse (which is a desirable outcome as far as the current admin is concerned).
First of all, it is not cheaper. It may be cheaper for young people because ACA marketplace rates are age dependent while COBRA rates are not. It is not cheaper if you are over a certain age, it is significantly more expensive.
Secondly, many ACA marketplace plans have narrower networks. (Which doctors are in-network doesn't only dependent on the insurance company, it also depends on the network, and insurance companies have multiple networks.) In WA, check out Regence's network for ACA plans--most hospitals are excluded, while their regular plans include them.
Unlike COBRA which almost always includes out-of-state doctors and hospitals, ACA networks don't. If you get a rare disease for which the expert doctor is in another state over you're out of luck.
And lastly, ACA rates just went up 20% in many states. If you are a couple in your 60's, you will pay nearly $45,000 for health insurance and then pay $7,000 each in deductible before insurance kicks in. At these rates, most healthy people will decide to forgo insurance. Which will reduce insurance company profits, who will then raise rates even more. This is a death spiral, and ACA will collapse (which is a desirable outcome as far as the current admin is concerned).