I am the extremely happy owner of the FS 128 previously owned by Don! This particular scope sets a very high standard in all performance attributes and I am looking forward to some side-by-side comparisons in the near future. Given that Don owned this fine scope for 4 years I expect his recollection of it's images are very good and result in noteworthy comparisons for your consideration. Unfortunately Don and I live too far apart to do a direct comparison in the near future (Don - if you are ever in middle California give me a call, we will test them
) Regardless of comparative results this scope sets a high point in my refractor ownership to date! My first evening with the FS 128 a few weeks ago was a jaw-dropper: the contrast and almost 3D details of Saturn were some of the best I have ever seen (in 34 years of owning scopes and observing).
Back to Kevin's original question I think the FS 128 represents an incredible value point in the market right now and many observers, like myself, are very well served by such a high quality used instrument. To those who aspire to the next level - that's great, we need pioneers to move the ultimate standards forword (and create additional used scopes:-)! However, many of us benefit more by the "education of the eye", increasing our ability to understand and discern detail, and the acquisition of quality viewing experiences, than by owning the ultimate best-o'the-best! The FS 128 is a great tool for doing this!
Thanks, Del Pruett