Modular synthesis is on the rise, and has been for quite some time now. There is a considerable market and the end of that trend is not yet in sight.
This might have been the trigger why Moog, the company that once started it all, hopped on the train and returned with their modular systems, the „entry-level“ Model 15, the midrange System 35 and the behemoth System 55.
I’m not so sure why they waited that long, but if you look at the price tags (10000 $, 22000 $ and 35000 $) the thought that the main motivation for that late market entry might not be a decision to bring awesome, new, innovative technology but rather to milk a fat cow. The corresponding keyboard and sequencer come at 800 $ and 8600 $.
So if your budget is 44400 $ and you want to invest in a keyboard, a modular rack and a sequencer, you will be able to finance a wall of racks beyond your wildest dreams, full of innovative, crazy modules – rather than a recreation of the sound of the 70s.