HI! im new here, and new to collecting Yu-Gi-Oh cards, bit slow on the uptake you see! anyway, i have a question about starter deck Kaiba. clearly there are two different versions of this deck, they have slightly different monsters, slightly different arangement, and an extra "E" added in the code.
like so
Set 1 Set 2
SDK-001 Blue Eyes White Dragon SDK-E001 Blue Eyes White Dragon
SDK-002 Hitotsu-Me Giant SDK-E002 Ryu-Kishin
SDK-003 Ryu-Kishin SDK-E003 The Wicked Worm Beast
SDK-004 The Wicked Worm Beast SDK-E005 Battle Ox

yadda yadda, you probably know what i mean and i assume this has been asked before but couldnt find anything with the search,

i guessed the extra "E" stands for European, the intro to this site says every single individual English version card is listed but the "E" versions aren't? so on to the questions...

Does anyone know why they felt the need to make such minor changes for the "E" version?
Are the "E" cards to be treated as being of exactly the same value as the normal ones?
Do any other decks have this normal and European Version? if so which ones?

Thank you in advance

i thought that too, but i checked it out and the Kaiba Evolution deck are coded SKE-XXX

The E (or EN when you come across it) don't matter on this price guide. Some are listed without them, some are listed with.

If you can't find it WITH the E or EN in it, take them out and search for the code that way.