In that case, then Nintendo should have done the same thing with the Wii U.
Keep in mind Nintendo is still selling the Wii. This is their "budget" offering geared towards the soccer grandmas. They don't need to make a watered down budget Wii U as long as the Wii continues to fill that role. When we get late into the Wii U's lifecycle there will probably be a revision which strips certain things out to shave off costs. But for now there is no need thanks to the Wii. Both Wii and Wii U will coexist on the market together for at least a year or two I would assume.
The best thing to do is not have any drive at all. Downloading everything to a hard drive or SSD (flash drive) is more beneficial to me, since I'll have all my content on the machine, and won't have to worry about scratched discs, broken disc drives, etc.
Until the hard drive fails, and then you're screwed. Especially when it happens years from now after PSN is shut down and you can't get it back.
I don't worry about scratched discs and you know why? Because I don't scratch them. I only pick them up from the edges, and when they aren't in the drive they go right back into the case where they belong. There is never a moment where I place my discs in danger of being scratched.
I have a PS3 slim which is working fine. I will, however, upgrade to this super-slim model way down the line when they're retailing for like $100 for the exact reason Brandogg mentioned.
You may have to wait awhile, assuming it ever even gets that cheap... which it might not. Where its at now in price might be rock bottom and it might not get any lower than that. Everyone seems to assume eventually every console falls to $99 in price, but that may not always be the case with every console. A HDD alone adds about $50 to the system's cost, so if you ever see it happen it will be on one which uses flash storage (like the Wii U or X360 Arcade).
Such a revision might even strip out the BRD like Tendoboy suggested. You said that's a terrible idea, but most retail games are available digitally on PSN these days. If Sony stripped that out as well as the HDD and just had flash storage they can probably get the cost down to $100. Otherwise, maybe not.
that top texture makes it look cheap.
People said that about the Slim too when it first came out, compared to the original Phat model. Sony doesn't do these revisions based on aesthetics. They do them to shave off manufacturing costs. So if they look cheap, that's the whole point, because they aren't going to come out with a gold plated gem encrusted model this late in the system's life.