While I agree with you, as it is indeed the best implementation of handheld home console games yet, I disagree @PSP/Vita: Compared to their "relatives" in the face of the PS2/3, they never felt like a compromise at all to me.

Anything short of my couch and big TV will always be a compromise I'm not willing to make.

The Vita mainly felt like a compromise due to lack of western and 1st party support. Proprietary memory cards did not help either.

What makes the Switch so great is the option to seamlessly go both ways (tv or handheld, what did you think I meant?) out of the box. The Vita started the process with VITA tv, but it was still two different devices.

The only handicap I see see with the Switch is games not coming to it that could clearly run on the platform with ease. I do not mind older ports as there are many games coming that I missed out on for one reason or another, especially WiiU ports. That does not change the fact that these newer games being left out of the loop is a decent hit to realizing full potential for the platform.

Aside from that, it is well supported by 1st party studios, third party deals (like Bayo, Mario Plus Rabbids, and Fire Emblem Warriors), indies, and older ports to fill the gaps.

IMO, the key to the Switch's success is 3rd party deals on top of first party support. This way Nintendo can help fund more exclusive games for us to play, be it new IP or existing Nintendo IP, that we can play no where else. It would be nice to have more newer multiplat games coming to Switch, and I support the ones that do, however it has become evident that this will not be the case in most scenarios. However with a more unified handheld and console system on the market, it will easily have more than enough robust content to push sales on par with any other existing successful console, and I am ok with that. Portability aside, we really don't need all three consoles running the exact same games anyway (though options are nice).

Yeah. G-Sync is probably a biggy, considering it's loaded with nVidia tech from the outset... And is the weakest console on the market, meaning it could make far better use of the tech.
HDR I can give it a pass if only they included the option for developers to take advantage of it in docked mode.

I personally want HDR displays everywhere ... (I actually share AMD's vision of having "better pixels") 

Gotta raise the whole baseline experience for display standards ...  

I would agree with you if PS2/PS3 were the console equivalents of PSP/Vita, but they werent. PS3 & PS4 released just 1.5-2 years after PSP & Vita and they shared the majority of their cycles side by side.

On top of that, a large amount of Vita games arent even compatible with PSTV making it somewhat useless.

I would say alot of that is due to developers/publishers not having alot of faith in Switch right off the bat and fearing it was another Wii U situation. They need to play catch up now that they realize its a big success and has a healthy software ecosystem.

Im not really worried because 3rd parties seem to be coming on board left and right and many of the games that can run on Switch but arent coming to it likely started development way before Switch was even announced.