As much as we liked the YSP-5100, we ultimately have a hard time giving it an unequivocal recommendation. It's currently selling for about $2,000, which is much more than its competitors and doesn't include the price of a separate subwoofer--which many competing systems include. Furthermore, when we tested it side-by-side with the almost identically featured YSP-4100 ($1,700 street price), we found no appreciable drop-off in sound quality. Yamaha's high-end digital sound projectors are excellent products for the niche they serve, but we'd recommend buyers in this price bracket still go with the cheaper YSP-4100.
The rest of the YSP-5100's connectivity is generous, too. Three digital audio inputs along with two stereo analog audio inputs are enough to handle any older, non-HDMI devices you still have.
It's not included on the chart, but the YSP-5100 also includes 7.1 pre-outs, although it's hard to imagine anyone using them. Adding an amplifier and a separate speaker system--then just using the YSP-5100 as a switcher--eliminates nearly all the benefits of having an all-in-one sound bar in the first place.