Is there anything at all that CelAction2D can do that Anime Studio Pro can't? Some of my daughter's favourite shows are made on Celaction2D. But when I looked at the how CA2D works, it didn't seem that different from ASP, except that you can't really draw in CA2D. This probably accounts for why the characters in "Mama Mirabelle's Home Movies" have lines that look hand-drawn. The art was likely scanned in and inked. In Ben & Holly, on the other hand, everything looks like it was made in Illustrator. Not sure about Humf. Humf seems to have pretty consistent line weights, a hand-drawn quality to the characters but the animation is definitely cut-out.
Could any of those have been produced in ASP? I can't get anyone from CelAction to send me a demo. I know I'm not their target customer base so maybe they think I'm not worth a trial version?