Kossel rails vs wheels

Hi,

Finally I've decided I want to tackle building a printer from scratch and have settled on the Mini Kossel design.
There seem to be two approaches for the linear motion, steel rails or wheels/rollers and I'm trying to decide what to go for.

Does anyone have insights into the advantages/disadvantages of each approach?
Price is something I can look up, but how about accuracy, durability, maintainability, noise during operation etc.


Any input will be appreciated by this n00b :)