I kind of disagree, if a retailer is paying the same for a 622 as a 722 it would be foolish to inventory 622s. If the 622 is priced say $50 less then it might be a good buy for some of your customers. The 622 has a built in ATSC tuner, if refurbished and they all should be it has a warranty. 622 has dual tuners with PIP and a UHF tuner 2 output. Yes it has a smaller Hard Drive but external hard drive usage is free so an external hard drive can be added to expand storage at a reasonable cost.Exactly. No retailer in their right mind would stock any and install them.