How much KM would anyone spend walking Eevees for Espeon or Umbreon?

...thought you only had to walk 10 km per?...

I will decide spontaniously. When i feel that there is a need for a new 1200CP-Prestiging umbreon, i will take a matching eevee and walk.

If i want to get a new universal attacker and i have a 90% eevee and sufficient dust, i will take this eevee and walk for espeon.

Until now, the two new eevolutions via name-trick are just fine for me, i am walking chansey.

I'd like another espeon or two - but I just hatched a chansey so until that's a usable blissey, I can't spare the km.

I do not like that mechanic :-/

Espeon as long as it takes to get one with Future Sight. For me that was my fourth, so 30 km plus a little and the name trick option. Zen Headbut or Confusion does not make a sufficient difference after that.

For Umbreon, all options seem to be pretty equal. Thus no walking; Tamao is my only Umbreon for now.

I'll walk 10k to get a lower level Umbreon just for prestiging because I want to max out my 98% one. No need for another Espeon. Got one with ZH/FS and I'm happy with that because I already have 2 psycho cut Alakazams (one with psychic, one with FS.) Maybe down the road if I need another gym defender I'll walk 10k more, but got plenty of guys up before that.

Well currently I'm walking Porygon for when I eventually get the Up-grade, and then afterwards I'll focus on getting gen 2 evolutions for Pokédex

However, if I had free reign, I'd probably pass since at my uni Eevee are only slightly uncommon and at my family home they're rather common
Plus I need to prioritize my stardust to my Lv29 Dragonite and my Lv24 Blissey (and then perhaps Venusaur)

If we have a half distance/dbl candy event again I might be tempted to walk a couple more - as I will get the required 2 candies from only 5kms.

This is something I am keeping in the back of my mind to take advantage of, if/when the time comes.

I walked 30k to get 4 total espeons. Wanted futuresite with both Confusion and ZH so I could compare. And got Psybeam in case Espeon works in local gyms.