Vehicle and VR kits are fantastic, and highly recommended. Both offer plenty to do, even outside of the joy of crafting them.
Vehicle has an interesting open world to explore, with plenty of missions to do spread across the different vehicles (plane, car, and submarine). It's fun to quickly swap between the different vehicles as you make your way around the island, and there's even some limited co-op if you have another right side Joy-Con.
The VR stuff is a trip, and while obviously has its limits in presentation and immersion, it has that Nintendo touch you'd hope for. Lots of little things to do, and they even have some extra downloadable mini games that you obtain from the Switch News Feed (the process is a little tedious, as you're saving them into the Labor Garage area, but you grow to accept it).
EDIT: Hmm, I missed that this is the VR Starter kit. I'd still argue that the $20 is fair, but be aware that you'd need to pick up the rest from Nintendo's Online store (which I don't believe is shipping physical orders ATM) if you were interested.