I bought a Dell E514dw for a pretty cheap price £63 ($82) from amazon. However only after calling Dell in regards to setting it up I was informed that Dell are not making anymore printers. Being in the UK its probably going to be next to impossible to get toners + drums for this and even if I can they would be at astronomical prices. 

I very happy with the printer as of now but in the next year or so I'm not too keen on it's upkeep. 

I print probably 50 pages a week or less. (Highly unlikely to print more than this). 

Does anyone know how long the drum will last me in terms of pages? 

Thanks!