Whoa, you're actually pulling the trigger? Not waiting for Nexus? What tipped the scale?
A few things tbh, haha:
*Price: Amazon has the Stratosphere for a steal of a price for upgraders: 39 bucks. That's a amazing deal for a 4G phone, hell the D3 is still 175 bucks or something.
*Reviews: Only Mobile Burn's review was a bit negative due to several characteristics of the device (It tries to get you onto Wi-Fi whenever possible so you don't use up your data if you're on a capped plan. You can disable this though. He also didn't particularly care for the action of the slider mechanism but I prefer a stiffer mechanism tbh. I also think his unit was defective due to some random bugs that I haven't seen anyone here notice or report.) everyone else said it's a decent device even if it's not a top tier phone. I can live with that.
*My Droid 1: My power button wasn't getting better, quite the opposite to be exact. I tried to flash a new ROM to try and solve some performance issues and was frustrated with the button not working in Clockwork Mod recovery. (Power button acts as a back button in the menu) I was also sick of having to tap it just right to get the screen to turn off, or end up accidentally pulling up the Power Options menu sometimes when I'm doing other things.
I also got tired of the random reboots: I tried to fix by flashing via the PC with a .sbf file (which apparently cleans out more junk then just wiping via CWM) but the stupid power button struck again preventing me from doing it. I managed to flash a froyo rom I had on a SD card but now the phone powers off randomly. I was experiencing random reboots before all this though in the camera, and anytime I was in the bootloader, it'll reboot if I don't complete the steps fast enough. It all became too much.
Finally, my headphone jack is broken like very bad. I hate not being able to use my phone for a mp3 player.
Ironically the D1 on even this somewhat broken Froyo install is snappier than Gingerbread. Oh well, time to move on from my 3 year old phone.
A shame that the keyboard didn't work out for you on the Stratosphere. Maybe the D4 would work better for you, especially if the exchange implementation is good on it.