While I love film, portra in particular, I shoot with a P65+ now. I don't really miss film except for some nostalgia. The first shot I ever took with the P65 I had my heart stolen. I used to shoot 5x4 and at times 10x8 and I thought with that first shot from the P65 that the look, the tonality, the colour the depth if field reminded me of large format, of 10x8. Once you spend a few days playing around with a decent MFDB and C1 you really realise how limitless it becomes. It gives me so much more than film. I was one of those that hung on to film for a long time for the colour, the tonality and now I have all that and more. I can make it what ever colour I want, I'm not limited by the stock. I can really mess the colour up too, cross process style etc and retain it's high quality. I can get that film look but have a clarity and sharpness I didn't have before. For me it's the best of both worlds. And best of all I can save it all as a preset and call it up at any time I want and then tweak it to suit the shoot and client exactly. I even have certain looks for certain clients.
Rent a P65 for a day and I assure you, you'll never look back. It opens the door to a whole new period of your photography and that, some day, is going to mean a whole lot of nostalgia for you. So what you lose in film is really not so much. I love film and I love what it has given me in the past and I love what it has taught me about colour and contrast and I take that an step forward into the future.
Finally it gives me something that film couldn't give me is the ability to experiment more freely, easily and precisely. And now you have complete control over everything. Once you develop your procedures you can have something, a look, that no one else can create. It's not like film in that regard where anyone can buy 10x8 polaroid and get that look exactly and instantly. Digital is limitless and provides us photographers greater ability to be unique through experimentation. There is a very, very great value in that.
Enjoy