This is a buy it for life sub, so I think it would be appropriate to mention that cordless vacuums are significantly less “buy it for life” than their corded counterparts. Some will argue batteries can be replaced, and they can in some cases, but that doesn’t change the fact that it will take considerably more effort to keep a cordless vacuum going “for life”.

Corded models will be substantially more reliable over the long term, and if you go with a good brand they will even come with long warranties. A Sebo, for example, will come with a 10yr warranty so you’re pretty much guaranteed to get 10years out of it and likely longer. I don’t think there’s a cordless vacuum on the market that you could expect 10years of use, maybe you’ll get there, but it will likely take considerable effort.