Bits about Aegis are well taken, and as I've noted previously well described in public documents, which I have read.
The price of Wheelies compared with motorcycles is not relevant. They are not being marketed as a consumer product. They are intended as an advertising medium. Would an advertising agency pay up for a unique medium? Quite possible. Further income stream to WM would come from a percentage of what the agency gets from advertisers. In any case, even if they sold for $1.50, they cannot be used on Thai streets without a wavier from the legal restrictions of lighting on vehicles: head lights, tail lights and signals only. WM has received waviers previously, so there is reasonable expectation that ad agencies would be able to do so.