Well, I like minis

So, my budget might be a little skewed here.
However, back when I was playing D&D 4e, I spent a fair chunk (probably $100?) on pre-painted plastic minis. At the time, the D&D mini runs were going, and old sets would end their runs. I would pick up singles and packs for as cheap as I could find - often in the $0.25 per mini range. Thus, I have a LOT of certain minis - 50 bullywugs, 20 barbarians, etc. I kind of did it on purpose, because I tend to like having packs in combat. For 4e and for 13th age, it works well, because there are mooks/minions (1 hit and they go down, functionally). It does make me think about the usefulness of something like that in FOTN - perhaps instead of just an Essence 1 guy, make him always use the short damage track.
I also got in on the Reaper Bones kickstarter and got over 200 plastic unpainted minis for $100. It includes an 8" Cthulhu and a 14" skeletal dragon. It's a lot of minis, and I've not come close to painting them all yet. This is more singles, as a whole (there are a few groups - rats, kobolds, etc).
I have a smattering of metal ones that I've collected over the years. I will mod them as needed.
Which do I prefer? I like the prepainted ones I think. I like painting, I like the variety, but ultimately I'm lazy. Lots of pre-painted ones can be had at small prices and fulfill the needs well as a GM. For PCs, I almost always pick one up special. Last one I really did was a reaper dragonman one that I modded to have a 3 headed flail. It turned out extremely well - but the effort was very high. Good for PCs, but not so good for monsters as a whole.
I like the custom base approach. I'll have to try that out. Perhaps I'll rig up a system with velcro so I don't have to commit my minis to hex bases - that and the D&D ones are on sqaure bases mostly.