Laser's ftw to be honest; I swear by my trusty Brother, 20 pages a minute, crystal clear black prints every time, thousands of pages without running out, and never fails to take the paper correctly or sends out two pages at a time like crappy inkjets. Large paper trays mean you don't have to keep refilling either. I just hammer out the prints on mine and toners (and drums) last way longer than stated capacities.
If printing text or graphics, an inkjet can never compare to a laser. I only use my inkjet for photos now, and it's a high-end job. This is a bargain for £15!
Alex, you can get the toners for around £20 - £25 for this model, or you could always just buy a refill kit for £8 - £15 and its not that difficult to refil yourself (think these may need resetting or rechipping, not familiar with Samsung, but the kits do include the ability to do this).