Yep, if you want 'just a phone', cfleck, then you have two VERY good options:
1) Keep your old one. Get a new battery for it, if that's getting old.
2) In case your old one isn't "good enough" anymore or you want a change in style, get a new one. I hear that ANY bl**dy mobile phone out there can still make and receive calls quite easily. And yes all the phone makers still have models without cameras. Some even still have greyscale screens (which in "just a phone" is more than good enough).
And now for the other arguments...
Okay, we can of course agree that a separate digital camera bought at the same point in time will always be 'better technology' than what you get in a 'mixed device'. Yet phones will probably reach the day when they make more than good enough digicams for 'most' people. Then at least for _them_ it could be a tougher decision. I don't guess that right now anyone would take one of those 1.3 MP cameraphones and replace a 'real' digicam with it.
With the music player, this could theoretically happen earlier. I mean: The iPod Shuffle? Come on: A phone can beat THAT any old day if it's totally iTunes compatible and has a fast enough (read USB-2) connection to Macs and PCs. And those RS-MMCs and SD-Cards aren't _that_ expensive, either. It's rather the software there that is lacking.
And as for PIM integration: iSync does a great job - if Apple only would support more new phones faster. But you can use mobical.net if a certain phone isn't iSync-supported, so although you won't be able to integrate totally with iCal and Address Book, you'll still have some integration with your desktop or notebook Mac.
Technologically, a really good smartphone would not only be feasible today, it _could_ incorporate an iTunes compatible mobile player, it _could_ have a more or less decent 3 MP camera and it _could_ come with good iSync integration. But like I said earlier: No-one's really interested in selling you a mobile phone they can't really top in three or four months themselves. They want addicts, not customers. (Well, they want customers, too, of course, but they're much more interested in those who replace their mobile phones every few months...) - That's why I suggested Apple. There _is_ a market for 'the finished phone'. Sure, Vertu might not be _the_ perfect example for you, but it is _one_ attempt at producing the finished phone (for those who buy RADO watches and drive Mercedes Benz cars) and you _can_ drop it btw., since it's made from very durable materials, very unlike your Moto or Nokia... But it was a good example for how there _are_ a lot of niches to be found in the mobile phone market.