To I-Phone or NOT to I-Phone

So I am debating if I am going to upgrade my phone.  Right now I am married to my Blackberry.  I have had it for 5 years.  I did however a few months ago, switch to another phone because I was curious about the touch screen phones but I switched back because I didn't like it.  I think it probably the phone I had.  So I am thinking about trying again, this time with a I-phone.  I was speaking to a friend a few weeks ago and I was telling him I was never switching because I didn't like the touch screen or really i think its too complicated.  He told me that is the way the world is going and what would I do if in the next few years they only made touch screen phones.  I thought about that and realized that I have to keep up how the world is evolving.  So we will see how long I will keep this phone...