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Sounds like it! It seems pretty tacky.
I'd be put off by something like that. Next time he mentions it, why don't you just stay silent for a moment, then ask 'Why are you telling me that?' and keep silent - see what he says.
Maybe you should respond by telling him that after you booked him you had 3 recommendations for DJ's that were $300 - $500 less!
This reminds me of the old joke about the 2 sounthern bells. They went to school together and meet up some years later. One starts braging to the other about all the beautiful material things her new husband had given her.
After each item the other responds politely 'How Nice'.
When the first one finished her list she inquires as to what gifts her old friend received from her husband.
The second responds with - My husband sent me to finishing school so I could learn to say 'How nice' to all your braging instead of '#!&# You'.
