Don't worry...I've had sooooo many people in town tell me that I over paid for Sonny and that he wasn't worth half as much as I paid...
I think Blu is really pretty...which will up the price...he is young again which can increase the price...he has fairly good conformation which will upp the price...and is that a flaxen mane I see? Hehe
If I was selling Blu I would price him probably at $1750-$2000 depending on the market...in NY you could get that much for him quickly (at least in the county that I'm in...but of course I'm near Saratoga...the big racing city so that's why).
I'd say price him at $2000 and put OBO...normally what people do for anything is they price it high and then haggle down that way you have more of a change to get the actual ammount for what you are selling.
Example: I paid $100 for my western saddle...I just really want $100 for my saddle...but I have it on consignment for $150 due to most people will haggle the price to try to buy it cheaper