Might as well sell Ethers - I stopped being so concerned about them when Leppa berries were introduced, since they do the same thing and they're free. So Ethers are already of little value - at least if they were sold, they'd be convenient.
As for Rare Candies - I don't care, honestly. Beyond the fact that I don't much care how anyone else plays their game anyway, I would think that there wouldn't be much point in buying and using them even if they were for sale. I know I wouldn't - I've never thought they were useful as it is, other than as an easy way to temporarily level a newborn up far enough to run its stats through an IV calculator, and an Audino and a Lucky Egg works better for that anyway, so they don't even have that little bit of a purpose left. If they were sold, they'd undoubtedly be expensive enough that it'd be a hassle to get together enough money to buy enough of them to make any sort of significant difference, and for that, I'd much rather spend my time battling and earning experience and, more significantly, gaining EVs, and lo and behold - pokemon level up when you do that anyway, and end up better than they would with Rare Candies, since they're getting the EV stat-increases as well. So for me, there's no point in them at all, sold or otherwise, and if someone else wants to spend their time accumulating enough money to buy enough Rare Candies to force level their pokemon so they end up overleveled with inferior stats, that's their problem.
