When I do get my davis, might just keep the OS for indoor stuff. at $20-30 a sensor, plus I have about 5 spare still in the box from Radio Shack Canada's demise
I still use my Radio Shack remote sensors to monitor the three levels in my house too, including the garage. It's good to know when it gets so cold in the garage you have to move the beer out before it freezes, or that the dehumidifier in the basement is still doing it's thing! I'm sure not going to shell out for the extra Davis sensors. I think I paid about 20 bucks for each extra Radio Shack sensor.
As far as Davis improvements, they really need to respond more to their Weatherlink deficiencies and bring the software up to current standards.
Rain bucket - design it to repel birds. I know there is a lot on the forum about home remedies, but it's wide spread problem that should be addressed with product design.
Get rid of the wires all together! (at least between console and computer). Make it WiFi out of the box with the OPTION of running a cable for those who choose not to or cannot use WiFi.
I like all the console suggestions (making it a color touch screen), but I'm thinking that really might run the price up, given there is a limited market for these products (us nuts) unlike portable GPS systems which everyone who drives might buy.
Otherwise it's a damn fine product that has been very reliable and I love the transmission range, which blows the competition away.