I have thought about what I am saying, but you have clearly not. The PS3 owners you're talking about have to spend a lot more than "zip", they have to buy a whole damn TV! HDTV owners - who outnumber PS3 owners by a huge factor and are already proven spenders on passive visual entertainment - only have to buy a relatively cheap player.
The only people spending "zip" are PS3 owners that already have an HDTV, yet your whole argument in this thread is based on the untapped market of PS3 owners without an HDTV!
Some extremely convoluted logic, and probably wishful thinking here. Why are you comparing those who have a PS3 and no HDTV with those who have an HDTV and no PS3. The two are not mutually exclusive, and there is no reason to suppose that if you have a PS3, you don't have an HDTV. In fact if you do own a PS3, you are more likely than the average person to have an HDTV.
Out of those people who have HDTVs, some will have PS3s. Those people will buy BD media, because it costs them zip for a player.
Those who have no HDTV and have a PS3, won't buy HD media, but when they do eventually get an HDTV as they will, they will buy BD media for the same reason because it costs them zip for a player.
The much smaller numbers who have a HD-DVD player and an HDTV will buy HD-DVD media (in half to one third of the numbers of BD media as we have seen currently).
Out of those who are able to buy an HDTV and have no HD player, you have been assuming that they will automatically all buy an HD-DVD player because at the moment it costs $100 - $150 less than a BD player with Toshiba's subsidies in place. Well actually they won't. The reasons for this are:
First, if you spend $1000 on an HDTV, you aren't going to quibble over a player that saves you about $100-$150 if it plays less media than the more expensive one. In addition, video rental is far more important than disc sales for most people (video technophiles apart). BD has the advantage in both of these.
Second you are assuming that the cost of BD player will always be higher than HD-DVD players. It won't. The manufacturing costs are similar. The current costs are down to subsidies by Toshiba and Sony for the Toshiba HD-DVD player and the PS3. No matter what what some HD-DVD fanatics claim, the manufacturing costs aren't very different for BD and HD-DVD players. As I said before, the subsidies for HD players won't remain when the volume ramps up, because HD players are open platforms like PCs since the hardware cost cannot be a loss leader for media, since media cannot be tied to play only on the subsidizers player. The PS3 can remain as a loss leader for games software sales since PS3 games will only play on the PS3, so subsidies for the PS3 can be recovered by charging a cut on games.
Toshiba can try subsidizing their hardware and recovering the money through increased royalties for HD-DVD players, but this will mean that no other manufacturer will license their technology. They can try recovering the money on increased license charges on HD-DVD media, but this will mean the studios will switch to BD media. Who knows, maybe this is what they are doing now since all other major CE manufacturers have opted for BD and more studios have opted for BD, and BD media seems to be cheaper on the market.
Subsidies on HD players are OK when you are selling in small quantities, but when HD player sales volumes increase, subsidies will need to be cut. In the long term BD players will be same price as HD-DVD (and probably lower than HD-DVD players due to greater market competition due to more manufacturers).
You are thinking too much in games console mentality. Standalone BD players aren't games consoles - they aren't purchased in isolation, and they can't be marketed in the same way especially with regard to subsidies because media is not tied to a particular manufacturer.
One other thing I forgot to mention. You are assuming that all HDTV owners will want to buy movies on HD media. That may well have been the case in the past because of the lack of HD broadcasts. However in future that won't be the case. Many won't have any intention of buying more than the occasional HD media disc, and perhaps renting a few HD disks. They are not going to pay out $200 to buy a player just for that, but those HDTV owners who have PS3 players will go out and buy those occasional BD disks because all they will have to pay for is the cost of the disk.