Firstly, I have been messing around with Reaper Bones mini's, I saw some on eBay and thought I would give them a whirl. The mini's didn't look great and their light weight and bendy nature at first put me off.
However, the true strength of these figures are their cheap price, It's the difference between getting six goblins or getting twelve. Of course you usually need buckets of the critters so a good sculpt for half the price isn't bad.
The real advantage of Reaper Bones figures did not hit me until I had started painting them, they bend easily and can be twisted into different positions. Also with a sharp knife you can swap limbs to make your own designs. Add all this with a box of plastic orc bits and the sky is the limit. I used some spare heads from War games Factory Orcs to make some variety in the group. All this was great fun and very addictive.