Wilson Watt Puppy, which version?


I am thinking of getting into the WIlson line with the Watt Puppy's. I have heard a few before in showrooms and I enjoyed them. I can not afford a new one, so looking at the previous ones there were several versions produced over the years. Can anyone explain the differences and if there are any "sweet spots" in the line up. ie is every newer version better or was there a point of diminishing return with the introduction of newer versions? I am trying to stay under 10k for a used pair. Thank you
vdosc
Sorry, one addition (for some reason I couldn't edit the above after clicking "preview first"). I said I preferred the 5s over the 6s. I wanted to add that the people who owned the 6s also preferred the 5s in my room over the 6s in their rooms - obviously each with our own associated equipment. This may say as much about synergy and room as it does the performance of the 5s vs. the 6s. I have also heard the 6s at dealers and liked my 5s in my system better. Though that wasn't the case at the very same dealers with the 7s!
Hard to audition past generations. I owned Wilson's since 3/2s. 5s, are both worthwhile. I would stick with the 7s as the better choice in your price range.
Wilson Watt Puppy, which version? IMO ,none.The Sophia 2 and 3 is where I would go if buying Wilson..again thats a big IF!
Buy the 7's in VA a great deal @$8500 and driving distance from you!!! Why do people that don't like WP's respond to questions about WP's!!!.
Why do people that don't like WP's (Wilson) respond to questions about WP's!!!.
Good question, but it is a given they will.