Help with recommended service?

Refer to your Owner's manual for the maintenance intervals and service. Don't take the service advisor at face value...he probably works on commission. Don't know if the Gen III board has this, but you can see the Gen II board for this reference What services you need and what you don't | PriusChat

Personally, I don't see why you would need a brake flush after 30K. (Disregard my personal opinion there...follow the Owners' Manual as folks have noted below). Balance should be done at each rotation - I do mine with a lifetime service at Discount Tire. All the rest could be done more cheaply than the dealer's $445.

 

4 wheel tire balance only if you feel your vehicle vibrates at 60+ miles, if not, then don't waste your money on it.

Front end alignment, only if you feel the car is drifting and not going straight when you don't hold onto the steering wheels. Also if you noticed wear and tear on your tires, such as inner and/or outer tire wears that bald down to the wire or uneven wear on your tires.

Brake flush do every 3 years, it doesn' tneed to be changed every 60k.

90k service is bs, just change your engine air filter, and cabin air filter. Also oil change every 10k miles.

 

30,000 mile (or 3 years) interval is what the Canadian 2014 Prius Owner's Manual Supplement calls for. (It says 48,000 kms, same difference)

To be fair, Honda typically says change brake fluid every 3 year, with no mileage limit.

Also, with the cabin and engine filter, don't just change them without inspecting first. Even the maintenance schedule says this. They are expensive items, and depending on your environment could well have more life in them. Just saying: it's never mandatory to replace the filters, especially if they're in good shape still.

 

I think your "spidy sense" is serving you well.

Consult your owners manual.
It sounds like they talked you into doing some of the ~100K items early.......and now are trying to get you to pay for them AGAIN.

Things like coolant and brake fluid and transmission fluid (if your model even has that) need to be changed occasionally but ABSOLUTELY no need to pay extra for a "flush" because that often is just a big ripoff.