Steam Deck OLED. November 16

Legion Go just released recently, so Valve decision have nothing to do with it certainly, it takes a lot of time to implement all hardware changes however small they might be and test it properly. Its big screen looks great, but WQXGA resolution is wasteful on a handheld because of performance and battery drain.

I don't think it has anything to do with the Legion Go, which was announced mere 2.5 months ago. For starters, screen quality was one of the most criticized aspect of the original model and its replacement with an OLED was always a clear upgrade path. Gamers Nexus' Steve in his recent video about Steam Deck discusses the differences between LCD and OLED models, of which there are plenty, as Valve has completely reworked the internals of the device, per Steve's claim. One thing that was brough up was that developers at Valve has spent 2 whole months just on the retracing RAM circuits within the board, which already does not really fit into timeframe, because we also need to factor for the time it would take to push the "final" variant into production. There's no way that all this planning, designing, development and production was done in just 2 months.
https://www.youtube.com/watch?v=9jhRh11bTRA

Also not really sure what is meant by "before they were ready for a full Deck 2 release", because Valve has repeatedly stated that we can expect Steam Deck 2 once there's enough of the performance boost that can be expected from these APUs. Digital Foundry's Richard Leadbetter in the most recent DF Direct also discusses what might be considered to be a "generational leap" in the handheld space by Valve - yes ROG Ally and Legion Go are fasted but at much higher TDP too - so we're clearly not quite there yet for this new "Steam Deck 2", or whatever it will be called.
https://www.youtube.com/watch?v=3Vo3hPhnYVg&t=600s
https://www.youtube.com/watch?v=3Vo3hPhnYVg&t=1440s

I will soon go to Slovenia on a working visa for 1 year, so I will be away from home for that much. In my case I really need one, I would go mad if I didn't play anything for that long. Ofc I don't need new OLED model, but it is tempting me too much. My thoughts are if I get it immediately and sell my old one, I will get some value out of it since proper Deck 2 won't be released for at least 3 years in my opinion. They kinda missed the opportunity to implement Hall Effect sticks, it would be nice addition.

If you don't want to pay too much, don't necessarily need the last product and don't mind second hand, the 512Gb (Valve Certified Refurbished) is at 380€ : https://store.steampowered.com/sale/steamdeckrefurbished

You can also get one unused for 469€ : https://store.steampowered.com/steamdeck (scroll down after the limited edition animated picture).
Or simply buy a 256GB LCD.
I don't advice the 64GB, except if you intend to replace the SSD but not sure it's worth the price.

I don't understand this post at all. "They could have sold the first gen as a prototype product at higher price and very límited numbers and then sell the OLED version". What does this even means?

It's still expensive for what you get, considering it's using an APU that's outdated by a year and you can get similarly priced Windows handhelds that are much more powerful. But I didn't have the fan issue with my original steamdeck. The fan noise was more of a lottery thing, mine is quiet.