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What Is The Best Vacuum Cleaner For Getting Up Dog Hair?

We have 5 dogs, and some carpeted areas. We have spent more money on vacuums than I care to admit. Oddly enough, the best one is this 15+ year old Eureka canister vacuum that we still have.
What have you found the best vacuum cleaner for pet hair to be? I don’t really want to spend $600 on a Kirby, but I’m open to spending something as long as I get a machine that really, uh, sucks.