@Kanindota - Yes, getting celebrity autographs appraised is an option you can do when the autograph is in your inventory. I didn't travel to Del Sol Valley, Brytani just appeared trying to climb the rock wall beside Sakura. So that worked out well. Hers are worth a good amount. The amount depends on the celebrity level.
"does anyone know if short, normal or long aging length affects Sim in-game time or is it exactly the same for any aging option?" The answer to this is yes for any of the lifespans. I just copied the below from Carl's Guide. So if you are on short lifespan, you will have less time to do things to get your aspiration completed. Most of us are playing with Aging Off. I hope that answers your question.
https://i.postimg.cc/wMfk1y85/aging-days-by-lifespan-chart.png
