So I was (well, I still am) in the same spot as you. Also trying to choose new phone and ended up deciding between Lumia 830 and Lumia 930. But after reading through this topic and several others I came to conclusion that it could be better to wait for Microsoft to announce new devices with WP10. And until then, settle for older or low-end phone.
L830 wold be obvious choice in this scenario but after some digging I think it might be better to buy L925. At least for me. It's still looking really good, it's half the price of L830 and most importantly... it's beautifully small device!!! And at the end of the year, even if Microsoft won't announce anything that would caught my eye, I can still buy L830/930 and quite possibly for better price than now :)
03-16-2015 09:10 AM