Digital BW, The Print

Eric Chan has a good web site devoted to the Epson 3800. 

If you can go to mostly roll paper, the 4880 will save you quite a 
bit of money on ink and paper over the 3800.  

The street price for the 80ml 3800 inks is $52 at mpex.com, while the 
220ml carts that you can get for the 4880 are $82.  That comes to 
$.37 per ml, vs. $.65 for the 3800.

I bought a bunch of Epson Premium Semi-Gloss paper for proofing 
recently when they had a buy 2, get 1 free sale (9 rolls.) My net 
cost was $.28 per square foot!  That is as cheap as Epson Enhanced 
Matte.  

The 13x19 sheets at atlex.com come to $1.04 per square foot - about 
3.5 times as much! (Atlex lists the per sheet and per square foot 
costs, which is nice.)

Similar numbers for Premium Luster, those were also on sale.  For the 
Hahnemuhle Fine Art Baryta, it is $2.56 a square foot in 13x19 
sheets, $1.65 in 24" rolls. A little more in the smaller rolls though.

I just standardized on 24" rolls for everything for me. Makes life 
simple. Use Qimage to fit images to page. But, I like to make a lot 
of big prints and proofs.

Many arguments in the other direction too, for the 3800.

Best,
Michael