I haven't really ever used it. I used to buy everything Blizzard made (OK that's an exaggeration, but I was all about WarCraft/StarCraft/Diablo...). Before Steam, I bought lots of games on disk. Now I buy most things on Steam. And I haven't bought anything Blizzard since Diablo III.
Why wouldn't Steam continue to be competitive against Game Pass?
(I'm just one person, but among the people I know that play PC games, I don't hear about Game Pass much. One person mentioned he's on a 14 day $1 trial - that was the extent of it.)
Game pass is significantly cheaper, unless you buy very few games on steam (and/or only buy them on deep, deep sale. Which doesn't really exist anymore in any meaningful way).
Sure, that $10 gets you only 1 month, but will you buy a different $10 game next month? Will you play this game for more than a month?
Pretty soon the GamePass ROI becomes difficult to ignore. (This coming from someone that doesn't have GamePass but is very impressed by the business model and value proposition around it).
I subscribe to Game Pass occasionally and it sucks every time to lose access to all the games I'm playing. It becomes a balancing act of "I can buy this game for $30 or I can play it (and others) for 3 months at the same price... but what if I want to play it again in the future?" Like most rental models, most times it's easier and cheaper to just buy the game upfront if you can afford it, especially when it's on sale, which is easy to predict (and be notified of) on stores like Steam.
But maybe they'll get there.
This month, Game Pass subscribers will lose access to Cyber Shadow (launched January 2021), Nowhere Prophet (launched July 2020), Prison Architect (launched January 2021) and Xeno Crisis (launched August 2020).
I'm also having trouble believing that Game Pass will remain $10 for long. At some point Microsoft will want to start recouping its investments and it's gonna start hiking prices. I personally got pretty tired of the constant Netflix price updates and I'd rather not do the same to my video game collection. I didn't actually have a gaming PC between January 2014 and March 2021, and it was actually pretty nice to install Steam and see all of the games that I bought between 2006 and 2014 still waiting for me in my library.
Got Conan Exiles for $12 and played it for 3 months.
If you really like playing a wide variety of games, and like to rent them, then a $10/mo deal is excellent. I like to buy inexpensive games and play them for a long time. Should I even mention the 15 years I got out of StarCraft?
I'll go in waves, playing one game like crazy for a couple months, and then maybe not playing anything for a few. I like going back to the games I already know I enjoy and playing them some more, so I don't want to rent them.
or if you want to play games that aren't on Game Pass. Though then it's not exactly a fair Game Pass vs Steam comparison, more Microsoft vs Steam.
I paid like $5/mo for 1 year of the Ultimate version, I can play games on both Xbox and PC and carry over progress for most of them. It's great. Steam doesn't have anything like that, so not sure there's any comparison to do.