OK. I'm prone to slight exaggeration, so I did some homework. $20-$30 for an acceptable transformer, $10-$15 for diodes, resistors, regulators, project box, etc. $45 max is my estimate. Even with 100% markup, that's $90. $220 is still robbery.
But this is not a critique on Eventide. Not your fault. The scamming is all over the place. $100 for a volume pedal? $150 for an analog effects pedal?
I'm just saying people need to embrace the DIY spirit.