Combination meter failure - is the dealership trying to scam me?

Hey all - my ‘07 Prius has had the problem where the dash doesn’t turn on, and the car doesn’t want to turn off, requiring me to unplug the battery to reset the car.
It happens maybe once or twice a month, and it’s been happening for years.
I’ve taken it to the dealership at least once a year for four years and they’ve never been able to figure out what was wrong, because I’ve never managed to bring it in when it’s in this stupid state.

Thankd to this forum, I found that this is apparently common, and caused by a ‘
Combination meter failure’, which the internet has told me can be fixed by replacing a capacitor.

I took it in today with this information in hand.
They just called me saying that they confirmed that the combination meter is bad and that it’s going to cost $3200 to replace, and will take 3 weeks because they need to order the part.

my friend who had this problem said that she did the repair herself and the biggest hassle was prying the whole front dash off to get access to the capacitor.

Is the dealership full of shit and just trying to cheat me by replacing a bigger part than necessary?

This dealership has a history of shady shit. I just don’t have anywhere better to go.

Thanks.