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
Well I doubt any dealer will stock prior W/P series speakers but they do have a customer base and from time to time their customers will want to trade up to another Wilson speaker. You would be helping facilitate this move. You may pay a premium to what you can find on the Gon but I think it would be well wort the investment.

Vdosc, where do you live?
If you want to stick to the ten figure go with the 7's. The eight's might be a little better but your going to pay $3 to 4g's more for them.

And yes some dealers get refurbished 7's and 8's for sale. You can even get a warranty and set up. Personaly I think the set up thing is over rated. You can do it yourself. And beside most rooms will dictate within a few feet where you will want to put them. I had the 6's and then bought the 7's from a dealer. they came and set them up and they were put exactly where I had the 6's. I did a little clap test and moved them around for a few hours and accomplished everything the dealer did without the expense.
Thank you for all your responses. I am very seriously researching The Sophia vrs. the WP 6 or 7 (again looking at used below 10K). I have an Audio Research VT100MKII. One of you said that the Sophia was easer to drive, but I see that the WP is more efficient (87db vrs 90 or 91). I could of course look at a bigger power amp but I am trying to keep the whole thing somewhat manageable :) Where as I like to occasionally "crank it" I mostly listen to music at lower comfortable levels, lot of late night listening. So it is important to have a speaker system that can play and sound full at lower volumes! I listen to a lot of classic rock (ie Pink Floyd, Steely Dan, etc. ) Thank you
I recommended the 7's when I thought you were going to upgrade the whole system, but after reading your last post and your desire to keep it "manageable" I will recommend the Sophia 2 over the 7!!! You could just about plug in and play with the Sophia 2 and you would have a very good speaker/system. If you were to go to the 7's I think you'll be upgrading the amps then the cables then the source etc, etc, etc that is what the WP's can do, reveal everything, the good the bad and the just ok. I owned/enjoyed the Sophia 1 for three years.
I forgot. I think your amps will drive the Sophia 2 easier then the WP 7's!!! I wouldn't go by the db#'s in this case, the 2's aren't hard to drive.