Luckily, in this case, V1 and V2 have the same tile art. I bought V2 not long ago as I decided to finally put the Scout tiles which had been lying around to good use.
Even better is the fact that, compared to regular carcassonne, there is no significant colour difference between the base and expansion tiles! Hooray!

)
So to answer your question, its probably easier and cheaper to buy V2, and it makes no difference since the only change between them is the box art.
And thanks for reminding me - I need to give this game another play