There's a big difference between the old fully manual stop motion, and the last few years, when it was done with computer driven stepper motors. Some scenes you might not have realized were stop motion used stepper motors to drive cameras over miniatures to mimic aerial shots, while models of vehicles etc were shifted between frames using linear displacement gadgets. Sounds complicated and expensive, but the hardware could be reused for lots of different shots, so the cost was dispersed over multiple projects. I expect a lot of that tech would have been used with the Blade Runner models which were posted a while back. (A lot of these shots you might think could have been done in real time, but the stop motion makes a much smoother result, with better control, unlike old '30s movies where you can see model motion mechanisms catching and jerking as objects are pulled along.)
I once stumbled into this whole field mostly by accident when interviewing for a job which turned out to be with a company that did this kind of stuff, in the early '80s.