When I started this game I fell for a Tactical Sport, I pined for a Czechmate, but was too intimidated to roll up to the line with a $3K gun as a newb, so I shot Limited with a TS... and immediately started turning it into an Open gun!
Like you I love guns, so three years and dozens later I'm still loving Open. I enjoy tuning DA/SA CZs (http://www.brianenos.com/forums/index.php?showtopic=191773) so I always have a handful of Production guns in the safe which I seriously consider shooting in a match, but rarely do
I had a half dozen Limited guns I never shot, so I finally decided to clear out all my .40 gear in favor of all 9mm, major and minor. Production is different enough from Open to give a break and work on different skills if and when I want time off the dot, it just hasn't happened yet
Also, if you use a horizontal Cmores, switching from dot to irons is no big deal.