Filament Maker

Do you think you need a 3d printing Filament Making Machine more than Filament itself?
Why we ask is that there maybe many interesting questions on 3d printing you have just like I do.
Is Reprap popular in South Korea? If you have a 3d printing Filament Maker, do you think you will extrude Filament from ABS, PLA, PVA or HIPS yourself for your own 3d printer?