We broke the LCD on our Canon PowerShot A650 the other day, and researching alternatives was educational to say the least. Read on for details...
Trying to find a reasonably priced upgrade was impossible, so we've ended up buying a NZ$200 PowerShot A590 to tide us over until the A650 can be repaired or replaced. The A650 is very well spec'd for it's price - it features a 6x optical zoom, 1/1.7" sensor and f2.8-4.8 lens with optical image stabilisation and manual control for around NZ$500. We've been really impressed with the image quality so wanted to replace it with something similar but better. However it didn't turn out that way...
Apart from the A650, the only PowerShots with a 1/1.7" or larger sensor are the A650, Ixus 980 and the G9/10 series. The Ixus 980 looks like a nice camera but is slower at maximum zoom and doesn't have manual focus. The G9/10 series cost significantly more than we wanted to spend. It's a similar situation in the Panasonic Lumix camp, with the excellent LX3 costing NZ$900+, and only having a 2.5x zoom anyway. Both Canon and Panasonic have "travel zoom" models with 10x optical zoom (PowerShot SX110 and Lumix TZ5) at around $400 - $500 however they have smaller 1/2.3" sensors and I wasn't prepared to sacrifice the quality.
So where to next? What if we bought a cheap camera to keep us going until something better comes along.
Setting a minimum requirement of OIS, manual control and 4x zoom (and sticking with Canon and Panasonic for simplicity) narrowed down the market to the PowerShot A590, Lumix LZ8. We went with the A590 in the end due to a $70 price difference, and the addition of manual focus. We could have spent even less, say NZ$160 but would have had to drop stabilisation or the 4x zoom.