Shimano 5800 vs 6800 pulley/jockey wheels

[Robbos]

I might have to replace my 5800 pulleys, but I cannot find any info about the difference between these and the 6800 level ones. In the past I remember it being worth it to pay more for XT/Ultegra level as they had better seals and less resistance. Is this still the case? Worth, say, 10$ more?

[sun]

You won't notice the difference when riding, but the 5800 pulleys use a bushing instead of a bearing.

[stephenmarklay]

For $25 you get a new derailleur so I would not spend any more than I had to on them.