Well it's always good to have options. It's not like they're going to discontinue the regular one or not release a Pro model. For someone who wants to play just 2-3 games or for someone who like to play handheld only, it's great having a smaller form factor and it's cheaper too.
Now if only the Switch games weren't so expensive.
For people who've lived in the US, how does it differ paying 60$ vs 4000 for a game? I've always read the PPP to be around 1:20. So does that mean buying games outside is much easier?