I have some of these-
which is a nice price, and a good idea for prototyping, but I'll say it- I hate soldering these surface mount devices. Most of my battle is getting the thing to sit on the pads to where I can even clamp it down. Anyway, I know it can be done, but its just not my thing.
The other extreme is to buy a prototype board of some kind, but $20-$30 a pop, that gets a little expensive. For example, with dip parts you can have 5-6 different bread-boarded circuits going with just the cost of the micro.
So, my question is- taking a simple board like above, and 1 48pin qfp micro (or possibly qfn, I guess), how much 'extra' does it generally cost to have a part mounted to a pcb. I assume quantity is a big factor, so I'll say 100-200 boards just as an example.
Ballpark figures, if anyone cares to comment. (I'm in US)