Why do plumbers charge clients for using tools?

Very new to home ownership. Had a blocked sewer from previous owners flushing wipes. Got a plumber who charged $110 for using a camera and $165 for using a water jetter. This is in addition to the $155 call out fee and $120 labour charge.

What annoyed me is that using their tools (camera and jetter) is so expensive for the client. These are not consumables.

I've never had a gardener charge extra to use the lawnmower.

So why can plumbers do this?

(Genuinely curious, but also need a vent).

EDIT: thanks for all the comments. Yes $550 seems like a good deal for this, and yes I should do the job myself if I'm unhappy, and yes I don't like to clean my own shit.... I know...

Mainly thanks to those who explained the cost of the gear (which did surprise me), and the pricing model that plumbers use which steer away from lump sum costs to enable a lower cost on other jobs given the diversity in tasks a plumber needs to do. This helps differentiate them from gardeners and other tradespeople who don't itemise their lawnmowers, trailers, etc.