Well, this year alone:
Absu/Rumplestiltskin Grinder - Speed And Spikes Vol. 2 (Split 7" EP) (Limited to 1,000)
Bludwolf/Toxic Holocaust - Speed And Spikes Vol. 1 (Split 7" EP) (Limited to 1,000)
Coral, The - Put The Sun Back (7" Single #1 w/Non-LP Track) (0758 out of 5000)
Coral, The - Put The Sun Back (7" Single #2 w/Non-LP Track) (1316 out of 5000)
Degree Absolute - Cleanse (7" EP)
Johnson, Jack - If I Had Eyes (7" Single w/Non-LP Track)
Saviours - Cavern Of Mind (12" EP)
That's just from my purchases list this year. Each release has exclusive material. Moreover, The Sword, Witchcraft and The Gates of Slumber have released vinyl-only EPs and singles recently, in 2007 and whatnot. The Gates of Slumber have another vinyl-only release coming out next month.
I'm sure there's more I'm not thinking of, too.