Yeah, there will be unmissable games that will be forced to be missed either way by having access to only one console. Nintendo's games are also unmissable so it's difficult to be able to play everything unfortunately.
Yeah. that's just the nature of this gaming business. And, if you intend to be a one console gamer, then there are sacrifices you will have to make.
Now that I've had time to digest this news and talk it over with others, I honestly don't think this changes much for me, both in the near term or even in the long term.
In the near term, this still doesn't change the fact that Xbox is completely lacking in major 1st and 3rd party exclusives, particularly at launch. If I got the Series X in November, and got just that, what exactly would I be playing besides 3rd party games that I could play on PS5 (Cyberpunk, AC, etc.)? Except for the Medium, nothing exclusive to Xbox really interests me in the near term or at launch.
And even in the long term, while I am interested in Elder Scrolls, Fallout, and possibly Starfield, and while I do like open world RPGs with created characters, pretty much all of the Bethesda games are 1st person oriented, which dampens my interest for them. I like those ES and Fallout, but I'm not some super massive fan of them. And I'm not really into Doom or Quake. Nor Dishonored or Prey, though those do look interesting. Again, they are all 1st person games of some form or another. And that's just not my cup of tea.
This isn't MS buying out Bioware from EA (or buying the whole EA) meaning Mass Effect and Dragon Age are going to MS as exclusive ips. Now THAT would mean a whole lot more to me.
IOW, I think I can live without these 1st person Bethesda games, even Elder Scrolls and Fallout. Whereas, I don't think I'd be able to live without the next Final Fantasy game. Or the next Persona game. Or possibly the next Street Fighter. While none of those are strictly owned by Sony, they do tend to favor PS with exclusivity deals. As well as other JRPGs and JDev games.
So, if given the choice, I'm still going to favor Sony and the PS5. especially at launch and in the near term.
If anything, this makes Series X potentially more interesting several years down the road. When those new Bethesda games like Starfield and ES 6, as well as Avowed, Fable, and Everwild, actually start coming out. If they look amazing and seem like games I really want to play, maybe then I'll buy the Series X.