Why so many wilson alexias for sale

I never heard them so this is strictly speculation. Perhaps they are fatiguing over the long haul, or the wives think they are too big or don’t match the

I am also surprised at how much depreciation they have, especially after a new iteration.
Sometimes over 50%.
B

I would think that many who buy expensive items, regardless of the hobby, are well off enough that when the urge to buy something new comes up they don't need to give it a second thought, just sell the old and buy the new. It's not necessarily a reflection of the product.

Because Wilson has (had?) an excellent upgrade program from the Alexia to the Alexia II and many Alexia owners jumped on it.

Because they are poorly made speakers, way too much energy in the top octave.