[phyzome]

No, generally when I buy something I didn't know I wanted, I soon feel vaguely "bleagh" about it and realize I had merely lusted after it, but that it didn't actually add anything to my life.

Buddhists have this down pat: Desire is suffering.

I think people are pretty capable of finding hobbies on their own. We're connected to this global information network. It's not like people aren't being exposed to new ideas all the time. But telling them "you will be happier if you buy this" is disingenuous, and makes people question their existing happiness. That's... bad.

I'll tell you one place where it's appropriate, though -- if someone is already seeking recreation, and doesn't know which option they want, marketing a specific answer is fine. One of the reasons people love libraries is that they can go wander around and discover something they'd never heard of. But that's someone who is already looking for a book to spend time with! Compare to a banner ad saying "this book will fix your life", when someone was just trying to look up information on how to fix their mower. They don't need that. They need to fix their mower.