Are DATs Still Worth Buying?

Anonymous Coward asks: "DATs are currently the standard for recording legal concerts like Phish and the Grateful Dead. However, they're absurdly expensive even on eBay and are no longer being developed actively by any companies. Are there any alternatives that are more cost effective than DATs (Sony has a D100 out for 700 USD) and maintain the same quality? (DATs can sample up to 48kHz)."