Don't even think about it, it's definitely worth its money. I wanted the Odyssey more, but I found this one that has both and I'm already blown away by Origins. I started it first because it chronologically precedes Odyssey and it has a lot of quests and side quests and a huge map. You will also hear a lot of people speaking ancient Greek on the streets of ancient Egypt. The only negative thing is that it doesn't have subtitles in Greek. I don't have a complete opinion about Odyssey yet because I haven't played it yet, but I'm sure it's worth it, even if it deviates from the series' basic standards. Why haven't you added it to your cart yet? Hurry!
Update: Now that I have finished Odyssey as well, it was nothing less than what I expected, on the contrary, it was the best! Excellent graphics with beautiful places, a large map, many missions (and side quests), and many other things that will pleasantly surprise you! If you find both together, they are worth it completely, if not, get Odyssey blindly!