The term "integrated" traditionally has been short for "integrated amplifier". However, in the world of digital streaming systems, the part that really matter to SQ and functionality isn't so much the power amp but the pre-amp, along with the DAC. Therefore, it may make sense to focus the integration farther up the chain. For about $5K or less, there are many good products that integrate streaming, D-A conversion, and pre-amp capabilities (volume control and source-switching). The Cambridge Audio Edge NQ, for example. Others include the NAD Masters M33, Matrix Audio Element series, iFi Pro iDSD, and Bryston BDA 3.14. You'll need to pair one of these with a good power amp, but the resulting total cost (and box-count) could wind up in about the same territory as you'd get with an integrated amp and source (e.g. turntable, CD player, or dedicated streamer).
At some point (say, the next 5-10 years) the integrated amp as we know it may be going the way of the stereo receiver. If you're already marrying source selection and volume control to your streamer/DAC, it is redundant to integrate these functions with the power amp as well. Separating the power amp then creates opportunities for mono-block or multi-channel configurations, along with the smaller footprint of a modern power amp like the Benchmark AHB2. Or use active speakers, for no visible amplifier footprint at all.
Of course, none of the above applies if you are into vinyl, tubes, and low-wattage SET amps.
At some point (say, the next 5-10 years) the integrated amp as we know it may be going the way of the stereo receiver. If you're already marrying source selection and volume control to your streamer/DAC, it is redundant to integrate these functions with the power amp as well. Separating the power amp then creates opportunities for mono-block or multi-channel configurations, along with the smaller footprint of a modern power amp like the Benchmark AHB2. Or use active speakers, for no visible amplifier footprint at all.
Of course, none of the above applies if you are into vinyl, tubes, and low-wattage SET amps.