Experienced Maggie Lovers Please Advise

I have 1.7's. I feel they are the sweet spot for quality/value to price. The 3.7's are a step up in performance and price however for me it's not worth it. The 20's are a different story though but very much higher in price. 

Using an active crossover really changed the game for the 1.7's. Setting the low pass filter at 70Hz and 18db/oct opened up the higher volume listening quite a bit.

I've had many Maggies over the years, including 1.7 and, currently, 3.7.

The prevailing wisdom is generally to buy the biggest model you can afford. I agree with this. 

I also have not heard any X. I find it hard to believe that they are worth the significantly greater price. But I could be wrong.

I used to love Maggie, but now I don't.

I have owned the 1.6, 1.7, 3.7, and now I have the 20.7's.  Bigger is always better when it comes to Maggies.  I've never heard the X versions.  I did upgrade the crossovers in my Moabs and that made a significant difference so perhaps it is worth the cost.

I've owned MG-Is and the original 2.7is; I had the 2.7is for five years before moving to a home that couldn't accommodate them and taking a different approach. The 2.7i in particular was an incredible speaker, very lifelike. I eventually settled on my grail speaker, Quad ESL63s, which I've had for 15 years.

We recently bought my son a system as a graduation present, and he chose the 1.7i. In that process we heard the whole line up to 3.7i, but this was before the new 2.7i came out, and before the x introduction. They're all great, in very similar ways. As you move up, you get better, fuller, more extended bass, although the fundamental character remains the same. As many have observed over the years, as you move up you also experience larger, if not better, images.

When I bought my 2.7s, the next one up was the 3.6i, and I listened extensively to both. I ultimately chose the 2.7s because I felt the bass was very close to the 3.6, but the overall presentation was more coherent, the speakers disappeared better and there was just music in front of me. That may be something they fixed in the 3.7i, and that may be even better in the 3.7x. That said, Jim Winey, the founder, did say the 2.7i was the best speaker they'd ever made, and at the time he said it I agreed.