Try a limited gun with a fiber optic front sight, a lot like a dot without the hassle of finding the dot, for me anyway not shooting an open gun much finding the darn dot on the draw is a PITA. For me, after I aquire the dot, a limited gun is faster up close, like out to about 10 yards, about the same out to about 15 yards, and slightly slower at 20+ yards. The only real advantage for me with a dot is accuracy at longer ranges, you can really punch A's at long distances with a dot.
As said, a gun built right will go a LONG time between tune-ups.
Another big factor for me is cost, an open gun in 38 super has much higher brass costs compared to once fired 40 in limited. Bullet costs are close as are powder costs. I can shoot more for the same cost with a 40 or a 45 than I can with a Super. 9mm major negates this completely but I don't have any experience loading it. The open gun will also cost 1/3rd or so more than an equal quality limited gun from the research I have done.
I really like L10 and Limited, my bias might be skewing my opinions but for me they are accurate.