I won't be moving to lithium or rechargeable for things like remote controls and kid toys. Other people in my house will treat them like throw away batteries. Also, as I understand it, NiMH rechargeable batteries are best suited for high power output devices, like flashlights (a.o.t., remote controls).
If they work (if the voltage is high enough), the only reason not to use them is cost. NiMH cost sufficiently more, and alkaline last sufficiently long in such applications, that even with recharging you won't break even in any reasonable time. Personally I don't mind paying the premium, because it's good to have spare Eneloops.
As for family members throwing them away... that's a matter of education. Alkalines shouldn't be thrown away with household waste anyway (at least in the UK), so old batteries should be treated different to random junk. Rechargeables are an area worth making an effort to educate about, in my opinion.
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