> I wouldn’t have a human personal assistant do anything for me as long as any money is on the line.

You don’t have to trust them with money. You can ask them to send you the info for you to do the final step.

> Your trip booking thing for example is something I would never give to a human assistant.

Maybe not you, but people already use personal travel agency for their booking need, see for example:

https://www.reddit.com/r/travelagents/comments/1i4fiod/best_...

Air ticket booking agency used to be popular before the Internet made that business obsolete.

> The alert for stuff on sale can already be done on the usual price tracking websites

Sega multi mega is a rare collectible item. No price tracking websites have it. You need to frequent online groups or forums of enthusiasts. eBay may have ones, but information (e.g color) may be missing, and follow-up is required. OpenClaw can do that for you.