What's the most overrated or overpriced piece of equipment you own, have owned or come by?

Wharfedale E90 loudspeakers many years ago. What was I thinking, they looked great and sounded horrible. Purchased on the basis of a favorable review in HiFi News. taught me a valuable lesson; listen before you purchase!

I suppose ex spouses would be off topic 

dbtom2: to start it has no handling of jitter. Whatever jitter comes in, comes out. The thing is buggy.... Very little bass. Only sounds good with vocal and simple stuff. Everything else sounds... wrong. It handles hi-res very badly too (ironically)

Also, noise floor is ridiculously high, -90/100db? My $300 pro audio dac noise floor is almost -130db...

I ended up selling it for around $3000, and I felt really bad for the buyer.

Cardas older Quadlink cables, Sehnheiser headphones, Parasound belt drive cd player. Bose was okay for movies for a while, better than built-in TV speakers.
Negative advertising is not illegal, look at the presidential campaign.

Schiit audio Yggdrasil. 
Its an OK dac but no where near  as good as the hype would lead one to believe. I know, I owned it.