$50k - $80k Budget…Opinions please.

With that budget you should be able to go digital only and rival many analog systems.

Like many threads, so many people coming from so many places. What I got from this thread is that it is best not to judge/advise others on financial matters. The primacy of a good acoustically treated/treatable listening space is a very important consideration. I would add to that, clean power is a thing of design/action and is critical to success, but every installation is unique. Don’t skimp on clean power. Previous posts suggest that it is wise to chose a speaker/amplifier combination that you can audition. There is much to criticize regarding auditioning equipment, but it beats reviews. Lastly, there are posters above that have decades of quality audio gear and lots of practical experience. One in particular has passed through the OPs budget and has compared equipment that I will never be able to afford, but the point is that this person is a valuable resource that has the experience to contrast different levels of system expense. In this case, it is a given that the differences are heard because of the listeners expertise and as mentioned in another post, is not simply because of the level of expenditure. I can’t say that I made all the right choices when building my system, but the best parts of my system resulted from me finding a couple of people that were rock solid with their advice.  Perhaps, having a couple of golden ear advisors that you trust and understand your tastes and room/financial constraints just might be the most important part of the selection process.  Good luck and use your next year listening and comparing.