I find this price absolutely reasonable. You can't compare Horizons with this expansion. If Odyssey is anything like the trailers promise, then E: D will be playing in the league of Star Citizen in the future...a game that, after many years of development and over 300,000,000 USD in funding, is still in a poor alpha status!
Oh, and by the way, the cheapest entry into the world of SC's alpha costs "just" 45 USD + 20 USD if you want to play SQUADRON 42 as well, whereby the latter has by far not even been published yet!
Against this background, I cannot understand your complaint with the best will in the world.
Well, I will go buy some ARX now to support E: D. ;-)