TLR,
I feel your pain! As a lifelong rider (junkie), we have a saying around here that you don't spend any less on your bike(s) because your work at a bike shop, you just buy more!
In many cases of whether the justification to spend is the question, the answer has to be more questions. Are you happy with the way your bike runs? Does it start easily, warm up correctly, cruise without surging, decel without popping, accelerate smoothly? Do you plan on making future modifications? Do you have a good dyno tuner that can give you your money's worth on future modifications?
If so, maybe you don't need this product. If not, there may be real advantages to this system. I see by the dyno sheet you provided, your "hypothetical" bike was tuned by John Golden, a respected tuner with a good grip on what he does. There are many, many bikes running down the road without this advantage. Our product offers our engineering department built in, at a cost slightly more than the Power Commander (without dyno tuning), and slightly less than the Race Tuner (married to 1 ECM, without dyno tuning).
Power is made by the physical parts chosen for the engine. A tuning devise will let the engine make as much power as it physically can (or keep it from making it!). Will it make more power? Depends on how sharp the current tune is. Will the drivability be better? Absolutely, for reasons I stated before and you seem to agree with.
[bgcolor=Yellow]That question is that even though your product is "better" how much better is it (in real world application and regular day to day riding). If this hypothetical rider with a username of Twolanerider were to consider spending $400.00 plus for your ECM what gains should he expect to justify that expense. [/bgcolor]
Only way to answer that question is to try it.....you'd have 30 days to make up your mind (sorry, the sales hat just dropped on my head). All you have to do is make the call! Thanks, JK