Some of the themes you're bringing up here actually point to why we created Magic+ in the first place. Magic+ was developed as a response to the needs of the most active and demanding users of our standard Magic service. In particular, a common demand was to hold a very high bar for quality and seamlessness of experience.
Right now, some of these user-requested experiences are more expensive to deliver than the original Magic pricing model accounted for. Our plan is to offer Magic+ at this price now, because there is good demand for it at this price, and drop the price over time to reach a larger and larger market. $100 dollars an hour is a lot, but our most active users tell us that for this level of elite service, it's a bargain.