I am one of those mean parents.
I am a single mother to two - one young primary child and one teen.
The younger one is getting a Nerf gun set with target practice (want), a telescope (they want to be an astronaut, so need), a cardigan (pants and socks, too, but they don't count, and obviously wear) and a book box set of their favourite TV show (read, and always the present Santa brings).
The teen is getting a new phone (need - the old one is barely working), an ornament they kept seeing at the local market and fawning over (want), a Japanese skirt/ sock combo (wear) and a manga (read) they've chosen, which, again, is imported directly from Japan.
I spent about £120 each (splitting the phone between me and ex), I know they will squeal at everything and love each present to bits. If done right, you focus well on what the kids actually appreciate and they will still love every moment. Chistmas is, after all, not about gift giving. Neither is Yule, which I celebrate.