Never wanted one, and I still don't.
I honestly never have liked Sony or their products but have owned them eventually down the line, but honestly, I think Sony just dropped the ball on this one...the price, the lack of innovation in anything even their games are just more "Me too" with subtle changes, and most importantly to me-online is STILL just an IDEA. We have seen NOTHING and NO ONE is saying anything about it. For all we know it'll be a more "solid" version of their PS2 service, which was utterly bullshit.
Honestly I think Microsoft stole the show, they really wowed me with all their new IP's and some really cool sequels. Not only that but the X-Box Live! community that they're pushing is great and should really be a social hub in the coming years. I think Microsoft doesn't get enough credit as it should, it's a great system with some great games coming out for it (Lost Planet, Gears Of War, Too Human, Enchant Arm, Brothers In Arms 3, COD3, Halo 3, Huxley...) so I'm more interested in this than even the wii...
But the wii really put on a show stopper. What a god damn show they put on. Really showcasing the DS and Wii and not holding anything back only the price and some more tech(wi fi adapter?). But ultimately, I can see the system failing down the road for reasons you stated, the demise of old hardware.