Hi Pawin,
I've had a #1 for 1 1/2 years, and a #2 for 10 months. I use mine at least once a week, if not more. I was like you - just a few smokes a year, which was mainly due to the hassle of it all! The prep, cleanup, constant tending the smoker, yuck! Love the results, hated the "process!"
What you will find with an SI smoker is that the process is SO much easier, you'll use it much more often! Prep is mainly on the meat, and cleanup of the smoker takes about 3 minutes! Once the meat is in the box, there's really nothing to do but wait for it to get done! These don't require "human intervention" while they cook. There's not foiling, spritzing, mopping, etc... Just put it in, set the temp, and do something better until your food is done!
Let us know what other questions come up, and we'll do our best to help!