I picked mms, but should have went with other! Landscape keyboard. WTF, I have big fingers and type perfectly fine with my iPhone. In fact, no one has raced me and beat me even with those people using physical keyboards (bb and all).
Here are a couple of reasons why I want MMS (at least for receiving):
1- The chain letter jokes that a lot of people send me, I never get! I installed SwirlyMMS and saw how many MMS I would receive with this.
2- Like llofte said, a lot of people don't have email and those that do find it easier to mms it.
3- I don't always have someone's email address, but I also always have their phone number to send mms.
4- For Ash's issue, I don't send anything to Verizon customers. Lol, I don't even call them. They're the enemy! This is actually an issue with Verizon as it never happens to the three million t-mobile customers I know.