I can imagine so, especially by the time you spend even 30min on each AutoCal modifying it, any profit on the hardware is gone. Fortunately, now there is an option once AEM releases their 30-0334 wideband. The WBO2 will be delivering data via the OBDII port. It's pretty friggin sweet (I have 2 of their 30-0333 units, getting sent out to get the EFILive compatible firmware), and the WBO2 costs about $200-225 so it's priced comparably to Innovate/etc.