Chromebooks worth it for the money?

Thinking about getting a Chromebook to just do financial stuff on ( looking at brokerage and bank account stuff). From what I’ve read they have at best maybe a 10 year life before they stop getting software updates. Is it worth it to get one for this? I see a price range on them too that is incredulous as some of them cost way more than a standard laptop.

I have a 5 year old chromebook that may have cost $100. I always travel with it to use for sending emails. Much easier than pecking away on a cell phone.