Looks and sounds like you got hooked on this sport! It still amazes me how far and how much you can see on a bike in such a little time compared to any other form of ground transportation. What bike are you thinking of purchasing? As a beginner I started on a Suzuki DR350 (electric start) and moved to the DRZ400 after a year. Enjoyed both bikes and they were cheap/easy to maintain.
If your wife is pissed off about your moto trip, you are doing it right