What speakers have you mistakenly let go and then later repurchased?

Well I never repurchased a set of speakers but I should have kept the Acoustat 2+2s, for my living room (secondary listening room) from 35 years ago.  Sold them very cheap.

@fredapplegate I get your point but my new wife hated them because they lacked bass punch/depth, extremely beamy, a bright overall balance and limited dynamics.   This in a 540 sq. ft. room.  This was 25 years ago.  I replaced them with dynamic speakers and she was ecstatic over the choice.   

My beloved Tekton Double Impact. Beloved 

@tlhub 

if you haven't owned any of those twice, it doesn't apply here.

Purchased B&W (Bowers & Wilkins) 802 Nautilus in 2000.  Because I was downsizing and thinking they were ill fitting the new abode, I sold in 2015.  What a ludicrous mistake.  Tried out 803 Nautilus and 804 Nautilus to fit the new room, and not as good sounding.  So found a pair of 802 Nautilus this year and problem solved.  

Never, when it's time....it's time......