I am up to 41,000 channels this year, it could be a lot higher but I do quite a bit of grouping to keep the channel count lower. I do a majority of my sequencing in Super Star. Cant imagine using anything else to sequence. Super Star plays my sequences perfect and very quick. It is when I bring it all into the sequence editor and try to play it with the visualizer that it starts going downhill.
Like everyone else I have started my 2017 display at some level. I have heard the rumors of what S5 might look like, all I need it to do is play 100,000 channels without any lag and life will be good my way for a while. I am definitely not waiting on S5, luckily I can put sequences together at this point, Time will tell what software plays the show.