Keurig vs nescafe dolce gusto?

im leaning towards the nescafe because i like the fact that you can make hot AND cold drinks, also that you can h milk. my only other question is this: can you buy a "k-cup" for the nescafe. meaning can you buy a re-usable pod that you can put your OWN coffee in to make drinks with. i know you can with keurig, but i want to know if the nescafe has a product that allows this as well?