I'm working my way through a FRE copy of pokemon x. Are flawless foreign pokes more valuable than their ENG counterparts?
Depends who you trade them to. I would honestly say not particularly (to most
regular [in the sense of frequently present] users) however; as certain people (
mostthe3rd and
cannibal in particular) have ensured a lot of people have access to flawless, foreign Dittos, so Masuda Method is perfectly possible using their own Pokémon (using only the one Ditto, rather than trading for 30 or so different species).
Of course, there are some people who enjoy the additional little language tags at the top of their Pokémon, or the foreign names—personally I find the additional language tags rather unattractive on the summary screen, and nickname my Pokémon regardless of language.
Edit: I probably just listed the facts you'd already considered. So to answer more directly: to some people they will have additional value, but I wouldn't expect every single breed you do to sell like hot-cakes.