I don't expect the sales to teeter off like UMD, I was just pointing out that you couldn't expect Ps3 to sustain BR sales long term. As for me, I certainly recognize the impact of Ps3 on this format war. Like you said, I feel like HD DVD has a limited window to break out and re-establish itself as the leading format. Unlike you, though, I don't feel that window is narrowing quickly. Ps3's slow sales, IMO, gives HD DVD a bit longer to get their price settled and continue to grow their market.
Remember, it's not like HD DVD movie sales are falling off (on the contrary, they continue to rise month over month), it's just that the Ps3 has boosted BR sales past HD DVD disc sales. So, HD DVD's challenge is to accelerate its growth to keep pace with the Ps3 effect.
We'll see. For me, it's been a fun ride. I got a HD DVD player for just $160, and if the Ps3 sales continue to lag, I'll soon have a Blu Ray player (plus a frickin Ps3) for about $400-$500. I know the 20gb model is already at that range, but I want wifi and a bigger hdd.