My Canon G1 (3.2 MP) and wife's G2 (4MP) still get constant use. Both are closing in on 10,000 pix taken. Both defy the commonly held notion that digital cameras are inherently obsolete within months. The G1 was purchased 7 years ago. The G2 was purchased 5 years ago. For several years now, the G1 has had a dead "up" button in the four-way button on the back, but in practice this can be worked around.
Both have f/2 lens equivalent from 32 to 102mm.
Silent mode is truly silent. Sharp handholding down to 1/6th second is commonplace because no moving parts.
Articulated screen allows you to take even wider shots by jamming camera into a corner, over your head, or into some other hard-to-reach location.
Hotshoe allows really flexible flash work.
Images at ISO 50, especially with the G2, are sumptuous. Both cameras are kept on ISO 200 for regular use. ISO 400 is useless but not really needed because of slow handholdability. Also, both cameras are set at EV -2/3 for more saturation, less blown highlights, making effective ISO 320, not 200.
Optical viewfinder could be better but at least exists (we who wear bifocals aren't wild about viewing LCD screens).
Video mode on both cameras is limited to 30-second clips.
The G1 has a nice B&W mode. (I much prefer capturing in black and white rather than removing color later).
G1's biggest annoyance ... only one strap lug, making it swing like a pendelum and unable to carry over your shoulder. This was fixed for the G2.
Here are some examples of the cameras' utility, especially as small carry-anywhere point-and-shoots.
1. Candlelight shot with G2, 1/13th second, f/2, screen articulated to allow shooting angle even though I was sitting directly beside her in crowded church.
2. Night shot (uncle telling his niece ghost stories) with G1, 1/5th at f/2.2. Purposely underexposed on manual mode to allow bare minimum 1/5th shutter speed.
3. B&W with G1.