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

The first were AR3a's.  I've now had three separate pairs!  I have owned 2 pairs of JBL L100's.  I wish I'd have kept Totem Sttaf and Platinum Audio Solo's.   I also owned 2 pairs of Solo's.   Regret selling B&W 804 Matrix.  I once put all my audio possessions into a spreadsheet and came out with the same conclusion: 

I'm sick :)      

@rettrussell 

😊

Heard this story many times.

Lived joyfully with Quad 57s for years. Then sold them to get dynamics bass and treble. (Probably also never had the right amp)

Always missed them. When I saw an ESS rebuilt pair, grabbed them. 
Now, would never have any other.

Vienna acoustics Beethoven, I tried many speakers that could go louder or had harder driving bass, even the VA Strauss didn't have the mids and top end of the beethovens. Now they're serving ht duties in my tv room, but upgrading from them cost a small fortune.

Like mglik, I bought my first pair of the old Quads in the late 80s. Sold them when Quad announced they would no longer provide parts for the 57s. Bought my second pair in the early 2000s and kept them for about 8 years. Just bought my third pair and this set I will hold on to forever (I'm a slow learner). The Quad ESL is not perfect, but it's the closest thing to perfection that I have heard in my home.