Wilson Sasha 2 Pre owned?


I am now listening to 25 year old Proac Response 3.5 speakers with Audio Research tube electronics.  Great speakers but I'm considering an upgrade.  I really like the Wilson Sabrina but now have a chance to buy pre owned Wilson Sasha 2s in the low 20's. They are about two years old but cosmetically perfect, would include a 3 year warranty from Wilson. Also, there was some kind of resistor upgrade after these speakers were manufactured and the dealer would include the upgrade.  The boxes/crates are not included.  Looking for any advice on whether this seems like a good deal, whether the Sasha 2s would be a big step up from the Proacs and whether the used Sasha2s are a better choice than new Sabrinas (which would cost less).  Have to decide very soon because there are others interested in the Sasha's. Thanks. 
brownsf
I would do the Sasha 2, I love my Sophia 1, and Sashas have a special place in my heart, its its on my upgrade path.
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I have Sasha 1’s and Watt Puppy 7’s. Love both, both different. I have heard the Sasha 2’s and would love to have them. Sabrina’s and Yevette’s are great, but Sasha 2’s are better. 
Why would you consider Wilson speakers, any Wilson speaker?  Paper drivers in a expensive metal box. There is so much better out there for so much less. I don't know of any other company that laughs so loud on the way to the bank than maybe that other company called air ( spelled incorrectly deliberately ).
  Yes, I have heard wilson's and no I do not like how they sound and I don't care to get into an argument with anyone who likes them because it's just my opinion.
Do tell which resistors were changed , the reason for changing and whether the new resistors are the same as original.