How can you validate an idea that does not solve any problem? I will not promote

I saw something cool in Kickstart and I thought it was cool. In fact it was so cool that I wanted it. But here is the thing: It didn't fix any problem I had and I didn't need it. And yet it was just so cool that I wanted it. And it wasn't just me, the startup apparently got the funding it needed in its first 5 minutes of being in Kickstart (I am fairly skeptical about this, but it got around 750k dollars). I am reading the mom test (just finished the chapter that talks about customer commitment vs advancement) and in general the book seems to focus on problems but sometimes a product doesn't have to solve a problem to be good and have people pay for it. What then? How do you proceed in this case? I will not promote