Plus, usually they don't offer anything more than an associate's degree. Can't remember the last time I saw anything less than "bachelor's degree or equivalent experience" on a job listing.
You have to do some due diligence to figure out what credits you can transfer. You don't want to waste your time and money on a class that doesn't count. But I know of some people who did this.
It's a better way to do it anyway. Lower level courses at big schools tend to be giant lectures, but many of those are going to be higher level courses at community college. Would you rather take Calculus in a giant lecture hall or a small class room? Same with Physics and Chemistry (although those at least have lab sections that are usually size limited)