Just checked: The Shimano Deore T6000 set which is on my R&M Birdy, costs about 47 € for one caliper and lever. The TRP Spyke caliper is about 59 €, and the lever is about 19 €, total 78 €. With two brakes it's more than 60 € more expensive than the Shimano hydraulics R&M use, unless Pacific have gotten a very good deal, or it's some new lower cost TRP brake I haven't heard of.

(Another question is personal preference of mech vs. hydro. I have mixed experience with Deore hydro, some leaking badly even with professional servicing, others performing perfectly year after year. The Spyke works very well. But of course it needs manual adjustment, which the hydros don't. Opinions will vary. I have kept the Deores on my Birdy, but if they also start leaking I may switch to Spyke, as I did on another bike.)