most bitcoiners are low budget.../ so 40 BTC hour may be a steal, but most will pass on the offer unfortunately. Perhaps a pdf made by you and that sells at a lower price may have more interest.
It's like offering a night at a 5 star spa at 2000$ instead of 5000$ to a middle-c;lass audience. Sure they COULD afford it, but the benefits are short and would cost alot for them proportionally
For now, high quality services are not very popular in the BTC community
check out #bitcoin-otc web of trust for an ebay style thing.
Yea, since my OP I found bitcoin-otc and biddingpond also, but they don't seem to get very much traffic. This board gets more, as far as I can tell, but for items/services with a relatively small target demographic (such as pro-level poker coaching), it's not a very efficient way to match buyers and sellers.
It'd probably be best for the community of ebay and/or paypal just implemented bitcoin support somehow themselves...