This is a long story to get to a point, but if you have the time, stick with me.
I bought the G3 in March and loved it. It was my third digital camera, and it is the first one that actually let me do photography. But when the Digital Rebel was announced (for under $1000), I knew it was time to go SLR. And I decided to keep the G3 as well.
I am one of those 'film guys' who has the load of film bodies and lenses, but couldn't give them up. I felt that when DSLRs became reasonable it would be time to convert.
'Back in the day' I used to bring my camera to work with me each day, and I would go out at lunch time to see what I could find. I found lots, and got a lot of good images. And I would carry the camera almost wherever I went - weekends, car races, family gatherings. Even after I got married, I took it with me. Then my wife bought a Canon Sure Shot (I've owned a lot of Canons over the years), and she (or I) could get 95% of the family stuff with the Sure Shot. Well, once the first kid came along, the 20 pound camera bag was replaced by the 30 pounds of kid accessories, and photography fell by the wayside. A camcorder appeared, but I can't quite get excited about creating movies - document my life and family, okay, but not much more.
So, 15 years later - the G3 makes for a terrific rangefinder that I can carry in addition to everything else, it has the lens range and the capability to get the shot in difficult situations. Another bonus is that (to Canon's credit) I can get one set of extras (battery, flash, etc) that will work on both the G3 and the DSLR. And the G3 fills a (temporary) gap in my DSLR lens coverage - I bought the Digital Rebel with the 18-55 and then got the 75-300 IS. That leaves a gap that the
G3 can fit right into until I get the 28-135 IS.
Bottom line - if you can afford it, the G3 can serve as a valuable addition to your camera inventory that multiple SLRs can't provide.
By the way, I now have a Canon F1, A1, 35-105 (the good one), 100-300, 135 f2.5, 24 f2.8, etc., etc. for sale.
Have Fun,
CoolToolGuy