Okay, here it goes.
1) THe leap from PS2 to PS3 is huge. In fact, it's significantly larger than the original Xbox to the 360. 1st and foremost is the difference in visuals, and then you've got the difference in feature set. With the PS3, you've got a unified online account, so you never have to register your screen name after you sign up for the playstation network. Then you've got your friends list, where you can chat, send messages, and see what others are playing. Next up is the ability to listen to music, movies, and play games stored on the hard drive, this alone is a HUGE step ahead of the PS2.
Then we can count in Linux, and you can install MAME and thousands of emulated titles.
Let's move on to downloadable content. How much was on the PS2 again? Oh yea, that's right, next to none.
Anyone who say's "the step up from PS2 to PS3 isn't that large" is being ridiculous.
Then there's games. Anyone who thinks they're "waiting at home for games" (yes, you) is simply being ridiculous. If you play *through* your games, and not just casually tinker with them expecting some glorious experience for a 10 second playthrough, then maybe you would feel that way. But for anyone willing to actually contribute some time to their games, you'll find they have a lot to offer.
If you were to buy a PS3 today, and pick up the following games, you will most assuredly be more entertained than you would buying an HDTV to start with.
o GT: HD
o Resistance: Fall of Man
o Ninja Gaiden Sigma (Demo)
o Formula 1: Championship Edition
o Motorstorm
o BlastFactor
o Calling all Cars
And then in June, you'll get Rainbow Six Vegas with tons of free maps, you'll get Ninja Gaiden: Sigma in July, then Lair in August.
You'll probably see Heavenly Sword, Home, and maybe another title in September. October? Well, might have been GTA, but I think the 360 has crushed those dreams, and delays' will happen.
November? Uncharted, and probably the new SOCOM as well. If that's not enough "content" to keep you entertained, and you still think you'll be "waiting@home for games" then sell your PS3 (or in your case, don't buy one).
It's an awesome buy, and the functionality of the console (and the rate at which it's updated) is hand over hand better than any of the competition.
Did I forget to mention Warhawk? If you're intimidated by a mild learning curve (yes, mild, it's extremely easy to spend 30 minutes with it and understand all of the mechanics of the game) then it might not be for you, but if you aren't, then this game will quite simply blow your mind, as there is nothing quite like it.
Battlefield? Eh, they're similar, but this is so much more. The elevation changes, terrain features, and flexibility of the gameplay engine is just far beyond that of other similar war titles before it. It's probably going to be a big seller, should it get enough publicity (and I'm trying to make sure it does, as should any fan of this game).
PSP is a good example, its always had good games. I got Chorno Cross still in its shrink wrap waiting for my summer break to spend on that and Front Mission 4. 
