It's scattered. Recently ~6 month old Velvia and Provia were selling for half price at one of the big NY retail outlets. Film Photography Project frequently has stuff thats expired. eBay has a lot, but it sells for way too much.
The death of film (and Kodak) is oversold though. There is still quite a variety available new, and Kodak Alaris still makes a bunch of their classics including TriX and TMAX100 and 400. TMAX P3200 and Ektachrome was just rereleased. Ilford has a lot of B&W films, Maco is manufacturing Rollei, Agfa, and other films. Foma, Adox are still making great films. Fuji has, sadly been scaling back, but they still make slide film and color negative film (and lots of instant film.)
Very few film cameras are made, mostly because there is a glut of used cameras that can be bought cheap, few manufacturers could compete (and volume would be very low.)
My hope is that at least for the foreseeable future, the film market has stabilized into something sustainable, since I love the film process and that's all I shoot.
