Where can I find a book print-on-demand service that allows printing of over 1,000 pages?

I've tried all the most popular sites, blurb, lulu, thebookpatch--but they all have limits on how many pages you're allowed to have! I've got a book that's roughly 1700 pages that I need printed, but I can't find anywhere that will do it! (I'd prefer it to be hardback as well, but I'll settle for paperback!)