They certainly look very pretty, and I have come across a number of people's posts about silver and gold here on Steemit. I can see how it could become a somewhat addictive hobby, thanks to some of the quite beautiful designs people are creating.
Bright Blessings!
Yes, the beauty of each piece is really a draw. But also the history of how these metals have been a part of so many of the worlds cultures for so many thousands of years. There's just something about becoming a part of that, even holding it in your hands, that just feels really satisfying.
I suggest the next time you have a spare $15-20 you've decided to spend on entertainment (order pizza, go to a movie, etc.) you indulge in this new way instead. Even just one coin will be something you can get hours of enjoyment out of over the years. And unlike those other things, it is also likely to go up in value over those years too!