We had the UPH's when we went on our honeymoon in 1997, and that was because we didn't know any different. This time around, after finding the DISboards, the UG, and several other websites, I had read that the cost of a package was usually more than buying tickets and hotel separately. I added up the cost for our trip, and it pretty much evened out, within $15 or so either way; I think it was the package that was just a little more. It depends on your situation. We will be arriving around noon or so, and plan to visit a park on our arrival day; we will also be in the parks everyday, with a rest break in the afternoon; we may park hop, we may not. On our departure day, we will be staying in the parks and having a late pickup (8-9 pm) from the towncar to go to an airport hotel and spend the night. We plan to go to a waterpark one day also. For me, the hassle of having to get the PHP's separately, keeping track of them in addition to everything else associated with our two small kids, having to remember to take them when we leave home, etc. was not worth the difference in the price. We ended up going with the 7 for 5 package.
Other than the convenience thing, I don't know of any real benefits of the package. You get the 2 pins and lanyards with the package, and a choice of something else (legacy tile, round of mini-golf, I don't remember what else) that's included in the package price, but I'm sure they're getting their money out of it anyway. The packages do have unlimited admission included to PI, WWoS, both of the water parks, and of course the regular parks for the duration of your stay. If you go fairly often, it might be better to have the PHPs though, if you have days leftover you can save them for another trip. To me, that's just something else to keep track of, and I prefer to buy tickets each time we go, but we won't be going more than every 3-4 years.
You can book either a Dream Maker package (with or without the add-on "plans" or separate hotel and tickets on Disney's website, or over the phone yourself. You can also book room only and purchase your tickets at the
Disney Store (if you have one in your area) before you leave. Or, you can go through one of the travel agencies (
Dreams Unlimited, Small World Vacations, Your Magical Journeys, I can't remember anymore of them) and let them do it for you. I'm to picky to let anyone else do it for me, I don't mind calling to make the ressies; others prefer to let the TA do it for them and not have to spend the time on the phone, looking for discounts, etc.
I hope this helped you out, at least a little. Happy planning, whatever you decide!
Steph