"I am the owner of an experimental, it's for me and the current price is $249."
You make my point well - just for you - how often do you think you will use it ?
My bet - once in the first year, possibly again in the second but if your engine keeps purring away (no problems) you are unlikly to use it, until your "bulletproof" (?) Rotax starts to use oil or a head valve may be leaking (2000 + hrs?) - then you will use it once again.
This is not a routine service tool, it's a diagnostic that you may use, when you suspect a problem, to delve deeper into the engine, that would otherwise require dismantling in whole or part.
This is the sort of infrequently used tool, that a group/club might want to invest in a (near) professional level one.