They look very cool and surely many of us want some of them, me too.
I think we should think again.
If someone (a thief or other nice people) finds or simply sees them in your house, they will then probably know what to look for: a seed. Or what to ask for (under unpleasant circumstances): a transaction.
You will get in trouble if the price rockets, because then you are the lucky Monero guy.
Big gains combines with bad emotions also between friends, do not undervalue that. Tell around you have at home a winning lottery ticket and see that with your eyes.
We are not yet there, where Monero is a established coin and 30% use it.
We hold (someone more and someone less) and get very vulnerable if someone finds that out.