a) limited selection right now. Of what, movies? Both sides have a similar amount of movies, so as long as there are enough movies he likes, then what's the problem?
b) relies on xbox 360, in other words you will need to upgrade it eventually, if your 360 dies, new console comes out etc That's the plan, isn't it? I mean, for 90 effing bucks what do you think, it's going to be his dedicated HD DVD player for the next 15 years? Besides, you can hook it up to a PC as well.
c) its an add on - meh. has its own power supply but needs 360 to power on as well and so on. Non-issue, since it actually loads up quicker than the standalones from the time you turn it on to the time the movie starts playing.
d) prices will only go down. that $90 price isnt some kind of limited time offer is it?
Apparently so, seeing as how it retails for double that.
e) a 360 with built in hd-dvd player is meant to be in development which should push on any price drops even further. if this happens, these hd-dvd add ons will effectively lose all value. MS has already denied this, but even if it's true, there will be over 15 million xbox 360's that WON'T have the HD DVD drive built in. Furthermore, talking about "losing all value" is pretty irrelevant when you're talking about a HD disc player for less than $100. How much back could you possibly expect to get back anyway from that?
It's a good deal, IMO, even if it's just to rent HD DVD's from Netflix. Having access to hundreds of HD discs for less than $100 is a good thing. The only comparable offer is Amazon's HD DVD standalone for $159, but that's $70 more (or almost double).