I trust you when you say the "blade broke", and I'm assuming you mean the metal itself. One thing I found about blenders that I immediately HATE is my Cuisinart uses these plastic clutch pieces to make the motor turn the blade. I looked at Kohl's recently to see if this is the way everything is. Everything they carried other than Oster used this method of moving the blade. I managed to burn the nubs off my Cuisinart and it was $8 or so for the part off ebay and a fairly easy replacement. However, what bothered me is that it would NEED replacement.
Mom's old Oster isn't pretty, and you're not going to get "small appliance of the year aesthetics" from it, but by golly, I won't fix my Cuisinart again but will just pay the extra and get an Oster next time around. All-metal "drive" is what I'm interested in.
Of course, this doesn't really address your issue, as the blade itself broke on you, but perhaps it's something worth checking out when you buy your next blender.