What? If that's true then that's the problem here. If girls like pink then you are branding the lower-end product as 'for girls', which was the problem to start with... If they don't, it doesn't matter, as pink is culturally associated with girls and the message conveyed is exactly the same.
Also, even if there are many colours for that same product, why are they showing the pink version for both the micro and telescope?
Actually, it's not the lower-end product, it's the mainsteam model. (Well, actually, the telescope is the cheapest on the TRU site, but there are binoculars cheaper.) Take a look at this week's Best Buy ad, for example. If you look at the digital cameras, video cameras, laptops and other tech products, you'll see that the cheapest
advertised models are usually the ones with multiple color options. Those are the mainstream models, and they sell the most and thus they can have the most color options. The absolute cheapest models aren't usually featured in the ads, and the multiple high-end versions usually don't come in colors because they don't sell enough units to risk a less popular color killing a sale.
There actually aren't that many colors available for the telescopes and microscopes, at least online. I can't even find the red one from the ad, only a similar blue model which may not be on sale. There are the pictured pink models (which also come in black), one blue telescope that has no other color variation (and is out of stock), and one blue microscope. That's it for colors other than black. As far as I know, the ad is showing every color that's been discounted.
The price point that will sell the most units gets the additional color options. If there's still only enough sales to warrant one other color option, then you choose the second color that will appeal to the most customers who won't want black. In this case the makers thought that color was pink. This is a business decision "More and more girls like science, girls like pink, so the best-selling model we can produce in multiple colors will have a pink option." That's an attempt to maximize sales, and the simplest explanation. To think that a business is trying to tell girls that they're only good enough for the cheap model is paranoid, and is contrary to the way color is used in most other products.
EDIT: I'll also note that the sole reason anyone thinks the red model is better thank the pink one is that it has a higher magnification. If the similar looking blue model is any indication, the red is cheaper than the pink/black model with lower magnification. I'm guessing this means the red comes with fewer accessories, or has lower quality optics, despite having a higher number attached. So, really, the pink may not be the cheapest, or even the wost, option among the three microscopes.
LOL, demon head microsope. Just what we need. Religious nut-jobs decrying this ad for trying to get women out of the kitchen and into the demonic sciences. Women studying biology is evil! Young ladies need to be working on getting their Mrs. not a PhD!