How much would you spend on a bottle of polish?

After reading many blogs and seeing lots of photos of the gorgeous (and legendary) China Glaze OMG Collection of holographic nail polishes, I bit the bullet and got one on eBay. I am kind of embarrassed to say that I spent $23 for this bottle of polish. Anyone who was smart enough to stockpile China Glaze OMG Collection polishes back in 2008 can make quite a few bucks on eBay today. They originally sold for like 8 dollars, right? Sigh... what's a girl to do? But I am SO happy that I bought this polish.

Two coats of China Glaze LOL (a purple holo) under regular lamp light. I did these nails last night and could not WAIT for the sun to rise to see their magic holo effect.

Tadaaaa! Here is China Glaze LOL in the sunlight. I added a few little filigree scrolls to some nails using a silver acrylic paint. I used Revlon Quick Dry Top Coat to seal them and protect them. I am already seeing a little bit of wear on nail tips after less than a day. Oh well, it's so gorgeous, I don't care!

And here is a quick video, because I really wanted you to see the way the holographic polish looks. The formula is a little weird (can apply with little bald spots), but coats well in 2 coats.

So how much have you ever spent on a bottle of polish? Would you ever pay a lot of money for a shade that has been discontinued (like the OMG Collection)? Are there certain brands you love but just don't buy because they are way too expensive (ahem, Butter London, cough)? I have heard about a polish called Unicorn Puke by Cult Nails that sounds amazing, but who knows how hard it will be to find. And the upcoming Muppets Collection by OPI has me considering taking out a loan so I can get every shade.