I'd kinda like a DAB tuner, but as BV said, with the differing type of services offered around the globe, Apple will never include a tuner. If there was one universal method of digital radio available, then I would be bemoaning the lack of such a tuner, but as this isn't the case I understand why Apple won't include it - you'd have to produce country specific models, and thats a lot of money flushed down the drain.
As for ye olde FM, its coming to the end of its life within the next 5 years or so. IIRC the FM transmitters were supposed to be switched of in the UK by 2007, but have since been moved back to 2010. As its DAB or nothing, and due to the points above, Apple will keep the iPods tuner-less for the forseeable future...
Oh, and All - everyone I know with a Photo (only around 8 people) uses the photo function. This ranges from people whose first iPod is the photo to power users.