It's pretty weird that Kodak doesn't just make them available as a normal product any more. You'd think students would want 100' rolls on a camera spool to save money while learning to shoot, for instance. They still made color negative motion picture film available that way even recently... though now that I look at their catalog it looks like that is gone too. So maybe this is the cost involved when they no longer have a warehouse full of the camera spools and 100' bags and cans around?!
Orwo will gladly sell you two different kinds of B&W movie film in 35mmx100' for less than half of what Kodak is asking:
Or if you really want Double-X, this should would provide some incentive to get equipped to deal with the longer rolls! It's only $150 for 400' brand new ordered direct from Kodak.
Just checked with Film Emporium http://www.filmemporium.com/store they sell Eastman 5222 Double-X film for $207.60 for 400 feet. This is sealed fresh stock from Kodak. A 1000 feet runs $474.00.
Still I would like to see Kodak sell shorter rolls if the price is comparrable to the longer rolls.
I wish Kodak still made Eastman 5231 Plus-X which was even nicer than 5222.
I checked with Vic at my source linked above and he still has some, albiet in 400' rolls, but now for $165 plus shipping. No, it's not the 100' rolls but I've not had any issues using a large film changing bag and carefully spooling out some onto an old leftover spool I had saved from an earlier used bulk roll and then loaded it all onto a Llyod's film loader.
I am particularly enamored by this film. Definitiely a bit more old school in it's look and a tad grainy (especially in Rodinal) but it has a contrast and a bite that I really like. I shoot it at 200-250:
SF Commute Bay Bridge
Eastman XX (5222)
by rich8155 (Richard Sintchak), on Flickr
BTW, many people do not even use a bulk loader but transfer directly from roll to cassette. IIRC a 36 exposure roll is ~5.5 feet in length.