Why is the Elite FS 12 with TotalScan transducer included $350 cheaper than an Elite FS 12 with no Transducer at Bass Pro Shops??? Does not make any sense unless something is missing from the TotalScan included model (feature or software?). No obvious answer from research and BPS. Please advise...I bought the TotalScan included model but have not opened it cause I feel like there is a catch I will regret later...Please advise...Thanks, Mark