Why I think it's nuts to buy costume jewelry instead of the real thing:
If your style is more flamboyant and out there, I guess I can understand the urge to cling to costume jewelry pieces, but is it worth the money?
Maybe buying more delicate, fine jewelry pieces is a more sound investment?
I am definitely guilty of having some worthless trinkets just because I thought were cute at the time and I will also admit that they're very specific - so can't be worn all the time...and that's the charm but also a draw back of costume jewelry.
Costume jewelry - the one I see a lot of people buying - is pretty expensive for what it is, and it rusts, turns green, dyes your neck, ears, wrists because it's not sweat proof...
Sure it can look cute, but the price isn't worth it. You'll most likely have it for a few years and it's ultimately completely worthless.
Buying real gold jewelry - whether it's yellow, white or rose - is worth so much more. Why? it doesn't color your skin (Haha Go figure, right...? xD ), it's actually worth something no matter how long you wear it and it never goes out of style. It's classically beautiful and it's, by all means, an investment.
So, if you're going to buy jewelry, and you have the money to spend - I advise you NOT to buy worthless trinkets, but invest in something worth your money - in terms of jewelry.
P.S. The fine jewelry you own is probably going to be fine 10, 20, 50 years from now...white costume jewelry's charm is fleeting at best.