I know I posted on this thread but cannot find my post and I do not recall deleting it at all. Anyway, as this thread continues, it is apparent the great differences of opinion. Two expensive and heavy 100 lb amplifiers delivered, set up, evaluation time given, and then the reverse. Come pick them up and reconnect the 13 pounder. The store owner is paying someone to do this, or he is doing this himself. Either way, it is a cost to the store owner, in money and time. It is also presenting the possibility of something happening to the mono blocks, as a scratch/dent can occur. This is no different than buying an amplifier with a 10-15 % restocking fee’. It is truly an individual decision, as there is no right or wrong. In my original post, I did indicate it was not fair with the mono blocks being sent, pretending they would mirror the single chassis amp. Not happening, although you must consider rvpiano's speakers have powered low frequency drivers, so any amp will not work as hard as driving full range. I went to people’s homes for years, as my expertise was invited to discuss improvements and upgrades. I did collect a consultation fee, which was discussed in advance. As I was not a dealer (but did business with dealers), my time was valuable. This was and still is, the way it is (not specifically me, as I am retired). As a consumer you either participate or you don’t. I rotate power amplifiers like people rotate socks, so they are an important ingredient to the presentation I am looking for. Just my 2cents. Enjoy ! MrD.