No one can expect that a Japanese copy, although of good quality, may have the high prices of many vintage instruments from the USA.
But the interest for these guitars is increasing: they are well built, and in general they tend to sound really good. Here a brief attempt to give a reasonable evaluation of their value, if they are in perfect working order, mainly based on ebay transactions:
Fender-like: around 250 euro
Gibson-like: around 250/300 euro
Original Neckthough: around 350 euro
* * *
- stratocaster sunburst VG: € 550 (2014)
Note: these prices are clearly not on the reasonable side, though they give an idea of the esteem for these Japanese products.