The name says it all.
It's funny to me that so many people try to convince you that the high end is a relatively insignificant factor in the grand scheme of all things audio. Admittedly, if you put the sales figures of one large, mass-market manufacturer next to those of even several high-end manufacturers combined, the former will dwarf the latter every time. But when has audio ever been about sales figures? I certainly don't have space here to elaborate on everything that high-end audio companies do for the middle and lower ends, both tangibly and intangibly. However, one of those benefits is particularly relevant here: the issue of perception. It's hard to overstate the significance of high-end manufacturers getting into the receiver business. Certainly, high-end manufacturers have raised the receiver bar in terms of performance, the quality of internal componentry, and features, but they've also had a tremendous impact on the way that people look at receivers, legitimizing a form that many people consider to be inherently compromised for the sake of convenience and price.