Just went the opposite direction, and am (for the moment) very glad I did. I like the simplicity, and am happy to save on the wires. Theoretically, there may be advantages to shorter signal path and fewer connections. In my case, the sound is better (though I spent more). $1500 might be pretty tight for pre, amp, IC and PC; if I had no complaints about my current setup, I might be reluctant to gamble.
John
John