With the reportedly much faster NV35 just a few weeks away, I can't imagine third-party manufacturers or consumers will be all that interested in current products based on the much-maligned NV30 graphics chip. Perhaps it's a good thing not many GeForce FX 5800 cards have made it to store shelves.
It would make sense for products based on the NV35 graphics chip to displace the GeForce FX 5800 and 5800 Ultra in NVIDIA's lineup, but I suspect NVIDIA's NV31 and NV34-based product lines will remain intact, at least for the near future. The likelihood that NV34, in particular, won't be upgraded soon doesn't bode well for the low end of NVIDIA's new chip lineup. Apparently, Asian markets are balking at the GeForce FX 5200 in favor of NVIDIA's older, cheaper GeForce MX line and the low end of ATI's Radeon line.
How competitive is the GeForce FX 5200 with the low end of NVIDIA's old lineup and ATI's cheapest Radeons? Stay tuned.