You know, backwards compatibility, or rather, the newer PS3's lack of it (save for PS1 games), has long been one my reasons for hating on Sony and the PS3. But shmokes is right in that it's not so much a big deal now seeing as there's a perfectly fine library of PS3 games and I have a working PS2 that can be hooked up with relative ease. Yes, it would be nice but it's really not so much a deal-breaker for me any longer and it's not incentive enough to find an older model.
I did read about the recent updates that prevented users from installing a secondary operating system to their PS3's (i.e. Linux) but to me that's a complete non-issue. I did a lot of modding with my original Xbox and PSP and I ended up "reversing" both of them. (Yeah I know, "apples and oranges" as the former was a legal modification. But it's somewhat similar so bear with me.) It was cool to play homebrews, but it made regular use a little more complicated (had to flip a switch for the Xbox, couldn't update the PSP, etc.) At the end of the day, I find myself using my consoles more legitimately than not. My emulation needs are met with the PC.
Soon as a new system comes out, I'm RARELY interested in playing old garbage. I'll make the obvious exceptions for arcade games but you'd literally have to pay me to get me to fire up a Gamecube or PS2.
I don't think a great games turns to "garbage" just because it gets older, especially last generation since the graphics weren't horrible piles of jagged, foggy mess like in the PS1/N64 days. I still have a lot of fine games in my PS2 library that I have no intention of ever getting rid of. Heck, I can get into playing Crash Bandicoot: Warped.
Yup backwards compatibility rocks!
But he has a point, are you married? do you have kids? a full time job? then realistically you don't have time for all the ps2 games + ps3 games
If' you're a student or a single guy then go for it!
Not married but in a relationship. No plans for kids. Yes, full time job with side work. But even so, the gaming happens on the main TV and the girlfriend is always watching something. So gaming for me is quite limited. I still have 2-1/2 Metroid Primes to finish, as well as the Wiiware version of River City Ransom. Then there's the dozen or so games put on the back burner...
But if I were single, I would worry less about backwards compatability. I would have all my game systems stored prominently in the living room with miles of ugly wires clogging the back of my entertainment center. If anything, BC is more useful to me now - the girlfriend doesn't want the clutter.
Actually, she doesn't even know I'm buying a PS3 yet. I'm telling her it's a BluRay player that doubles as a gaming machine. Then I'll get a game that she'll enjoy like "Buzz" or something.