NiCd's are old school, but learning about the different chemistry is cool stuff.
You don't take for granted one chemistry over the other, kind of.. knowing the good/bad of each.
I still use my NiCd's and NiMH almost on a daily basis. Only on the weekends do I run Lipo as I don't feel like waiting for them to charge each time. I have a couple NiCd/NiMh packs charged at all times and just peak them week nights before use.