I have seen going Nightlight on German Ebay for 80-120 Euro ($90-135) depending on her condition, if that helps, but don't know much of the international prices for her.
Raindrop is always a little lower in price, I would think 60 to 80 Euros depending on condition, which would be $70-90.
Also, I bought my own Starburst Variant for 133 british pounds a few months ago, which would be 170 Euros or $190 today.