Eris to Droid4
I too was an early smart phone adopter and had the HTC Eris (for over 2.5 years) I truly loved this little phone. Slow to be sure compared to product offerings in the last 12 months but it has been a feature-rich, reliable little workhorse. My wife and son also had the HTC Eris on our family plan so when their own renewals came up and they went with the iPhone4S I got to keep their old Eris's and have had a blast over the last 3 months toying (or is that tooling?) around with three Eris's, jailbreaking all three, removing bloatware apps and using them for all kinds of crazy fun. My wife's became a wi-fi games and music player for my 6year old daughter, my son's became a wireless CCTV camera for the house and my own, well, my own felt like it had a new lease of life for 2 months before I finally upgraded to the Droid4 on Friday.
Price: If you are with a provider and on a 2 year plan, you are going to be looking at anything from $149.99 to $199.99 for the Droid4, Razr or Razr Maxx but let's be fair here, if you had to purchase the phone hardware without a contract, you are looking at anywhere from $540 to $680 so they are a great price for the technology you are getting.
For me, I waited and waited, passing up on my upgrade eligibility, because I knew I wanted a 4G enabled device with a slide out keyboard. The Droid4 was the only choice for me. I have a large and successful Verizon store close to where I live and I have spoken to 5 of their staff who ALL went with the Razr Maxx (because of the extended battery life) and they all had nothing but praise for it. For myself, I love my Droid 4 and have been tinkering with it like a kid on christmas morning.
Friend, if you are ready to upgrade, make the change, you won't be disappointed.