The "Lightning" guys are not "economy bike" manufactures. That's for sure. They are going top of the line. That said they are talking about 400HP equivalent out of their race bikes in the not too distant future (ouch, my 70HP honda 750 back in the day had plenty for me!). Electric seems to make sense for (non endurance) race bikes. Cost be damned, range be damned. Want more power? toss a few more coils onto the armature. It just sucks the battery dry quicker.
How long till there is a viable 450 killer in electric? Twostrokies might want to be more worried about eMX'er than four strokes at some point... Not now but at some point.