I haven't any experience of these particular toys, but in general I find that poorly made toys tend to stay in one piece if they're only displayed/posed/gently played with by adults. I have a weakness for £1 dolls and also Monster High fakies, and though I don't think they'd stand up to being played with by children for any length of time, they're fine for what I want.
Also, if you're not a perfectionist or 'picky collector', any damage to these sorts of toys can usually be easily fixed with superglue.
I say get them and enjoy them!