That link doesn't work? You've made this in the wrong section.
Even though I can't see the website I could throw some numbers out. If the website is pretty simple (design) and you want only a single game on it such as Minesweeper it shouldn't be more than a few hundred dollars.
Web developers usually try to price their cheap products much higher than they should.
I'm making this assumption thinking that the website has a simple design and single game. I'm pretty sure that one could find someone to do it quite cheap.
Update:
That link doesn't work? You've made this in the wrong section.
Even though I can't see the website I could throw some numbers out. If the website is pretty simple (design) and you want only a single game on it such as Minesweeper it shouldn't be more than a few hundred dollars.
Web developers usually try to price their cheap products much higher than they should.
I disagree. Good web developers cost a lot of money. There are a few that overcharge, I agree, but 7000 euro sounds like a good deal to me.
After further discussion, you seem to be right. I was mistaken with my assumption.