I'M WITH YOU GIRLLLLL!
I was considering BU'ing this baby up as well... it's so hard to know whether BU'ing up is a good idea or not. If I LOVE something I tend to grab at least 1 extra JUST IN CASE... you never know when it might get lost or "sticky friend fingers" help it walk off, or damaged somehow! Let alone the possibility of actually FINISHING it! Oh gawd... I think I just made myself panic! Off I go to put a BU in my cart!
ooooh nooooo! Don't panic!!
I BU plenty of things, but usually only if it's something that has all three (or maybe 2.5, if I'm feeling exuberant) of these factors:
1) Really unusual/complex/unique
2) HG material - either you can't imagine any possible way it could be even better and/or you know you are going to wear it so much that you are certainly going to run out (so lippies and some face powder, mascara or liners, but almost never eyeshadow and I've never BU'ed blush or highlighter)
3) Something that isn't in the middle of the latest trend, but something either way ahead of the trend or fabricated with special tech or materials you know won't come back around again so soon.
So even though I love By Design, I might not back it up. It's certainly in the HG/daily use zone and it's somewhat unique, but I do think we're going to be getting more warm nudes and more of these subtle new satiny frosts, so I may just wait and see. I only bought one Reel Sexy last year and I wore it so often I got a BU off of a Specktrette, but as it turned out, this year we wound up with an entire collection of awesome Reel Sexy style apricot orange sherbet colors with AAO, so I didn't really need that Reel Sexy BU after all. Hell, this year, once AAO came out, I haven't even worn RS again and just wear the hell out of Sushi Kiss and Sweet & Sour instead.
I *DID* BU FTS, though, because we know how often MAC does pale pinks and pale lavenders, but how rarely they get the balance just right for my very particular, greyed out needs, plus the FTS formula is super awesome, with great coverage and staying power - it's original Flamingo level "good" lustre. Finally, even if it gets repromoted, the color mix is very subtle and complex and a repromote batch might not capture it as perfectly, so BOOM, back up time - EVEN THOUGH I may actually wear By Design even more often than FTS, on a day by day basis.
Just trying to be a hyper-realistic anti-enabler.
Watch me BU BD in 2 months after all!