>>12138492 (OP)
>disadvantages
You don't get to relive the real experience: CRT TV, original controller, physical collection of games, original hardware graphics and vibes.
Just plug and play.
>advantages
You can experience your favorite games in a remastered manner with: HD Texture Packs, Internal Resolution Scaling, better framerate, faster or no loading times...
Infinitely more convenient than the real thing, but requires some knowledge.
It's up to you