I'm afraid you've hit the classic 'What is a reasonable cost for a table?' or 'what is a reasonable cost for a car'
Well, sticking with the car motif, you can get a second hand car for a few hundred dollars and it will work fine as a car. You can get a website for a few hundred dollars and it will work fine as a website
If you want a shiny new car with basic functionality, you are talking a thousand dollars. If you want a photography website with more than just a template look and feel youre talking about a thousand dollars.
If you want something with a few frills, then you're talking a few thousand dollars. Same for that website - you see where I'm going..
If you want a typical professional car that is very reliable and look nice, you're probably talking $8-10k ... ditto website
If you want a car that is going to wow people and will draw heads, 10-20k. This will have lots of gizmos and doodahs..
You can pay 20-30k for a website and it will have been hand designed with lots of consultation with you and have integration with your digital asset management system etc..
Some people have a friend who can take a second hand car and pimp it up to make it look like the 20-30k car for 8-10k..
Some people think you can buy a second hand car and throw a few hundred dollars at it to get the same - they might even manage it, but it's unlikely..