I consider these rather expensive for what they are, at around $8-$10, depending where you see them being sold. Considering they are a one-time use manicure package, to me that seems rather price-y when a bottle of nail polish typically costs less than that. That's why I like to scope out the ones with designs, especially the ones I know I can't achieve on my own.
I picked out the 'Crowd Surfer' design because I'm a big fan of blue and I think it goes well with silver and also because...
It was on clearance. =]
I also saved money by using only one pack (each box comes with 2 packs of stickers) for both hands. I guess I have short nail beds. I'll save the other pack for the next time I'm in a blue, glittery, ombre-ish kind of mood. I like the smooth feeling of the sticker whereas glitter polishes usually feel grainy unless you have a good topcoat.
Have a great day!