Used PC vs notebook gaming machine,

Hi all,

With the current CMCO situation, really getting bored at home.
Already owned a PS4 and finished a lot of games recently.

Now I am looking for a gaming machine to play some older AAA games (circa 2010-2018 games)

Not sure to either get a desktop or notebook for this purposes.
Might consider to sell it off eventually once I am done with it.
Budget around 2k.

Question is for such 'interim' gaming purpose in mind, should I get a desktop or notebook?
Which one would have a better resell market/value?

Thanks!