[galfarragem]

1 & 2: Best generalist lisp routines were natively included along the years. So "lisps" (as non-tech guys call autocad scripts), nowadays, only make sense to answer to custom needs. You can be sure that any architectural office have plenty of stuff (design related) that could be gladly optimized/automated. The problem is that they rarely have a person (or the budget) to do it.

3: I'm an architect (housing kind).

Newbies use to hate Autocad. I hated it in the beginning also. It will take at least a couple months until you start to get some profits from it. A couple years to get proficient.