meh, £150 core system, done, buy games get on with it.
wireless, gimmick generally, extra's due to wireless, not needed if you don't have it. hard drive, demo's, errm, a couple beta's(can you get beta's sorted by disc or not, bit hard to do that really), all the other crap, its up to you, some people don't want to play over the net, a year of live service isn't expensive though.
there isn't a base ps3, 99% of users will not make use of the bluray properly for a couple of years, by which point there will be a £60 addon hd-dvd/bluray combo drive available for the xbox360 probo.
the price is what you make of it, quite frankly high def drives should be addons available with price dramatically falling on them over next couple years. hard drive addon's should cost almost nothing £70 for a 20gig drive is beyond a joke. if you take base price of the xbox, and then if all the accessories weren't utter rip offs you'd have a £170 xbox 360 with hard drive. which to me seems pretty cheap. but the ps3 without uk rip off and without bluray drive should be much cheaper also.
what i would love to know is how much of the total real cost of the consoles for each major part, mainly because i want to know just how much that bluray drive really add's to the cost. i mean, at £100 for special deals(buying it same time as a new 360) you can get the hd-dvd, theres still some profit there to the reseller, there's vat, profit for m$ and profit for the hd-dvd drive producer. the parts for a hd-dvd drive can't be more than £40, which would suggest the bluray isn't "that" big a cost in the ps3.
the only relevant question with consoles is, how much would they cost if they sold accessories at reasonable prices and gave you the option to buy a working console with all features(you really do need at least some hd space now) and none of the profit making scam accessories.