To be honest, I am willing to pay whatever if its a great domain. For instance my proxy bid was $2,000 for CoinBlockchain/com but I got it for a lot less.
The problem with stating a budget per domain is -> It ruins the experience for me when I set a budget for lets say $25 to $200..because almost every single submission is guess what price?...$200 <- I know this is only because I stated my max price was $200. But people who have a domain change their price to $200. I might have bought at $50 or $100. And later after I say no I see the domain on the forum for $20...or less than offered
I think its best if the sellers price their domains, not price their domains off my maximum budget each.
NOTE: I am not talking about a particular person, just stating why I don't like to state a budget per domain