That brings the price down to ~40 cents/ml, which is much more in line with Epson's ink costs. I got the numbers for the HP ink from HP's web site, as it doesn't seem to be listed at B&H, which is where I get my Epson ink from. If it's cheaper elsewhere, then the 130 starts making more sense financially. The printer itself is less expensive than the Epson 7600, the 130nr (with network + roll paper options) is about $1900 vs ~$3000 for the 7600 + network card.
The 130 is interesting to me because although Epson is pretty much unbeatable for matte prints, the bronzing on glossy stock is a definite issue unless you clearcoat the prints. Epson's R800 does this automatically for glossy stock, but currently none of their large-format printers do this, and changing black ink from glossy to matte and back is an expensive hassle. So a 7600 equivalent printer capable of high-quality glossy prints at a reasonable cost to complement the 7600 sounds interesting.
Epson Enhanced Matte is 10 mils thick.