Dealers should know enough to properly tune the bows and work on them, I think we all agree on that but how many are willing to pay the dealer the certified mechanics prices of $60 to $75 bucks a hour to work on your bow?
I am not trying to start any pissing matches here I am just asking what if you took your bow in to have it restrung, tuned and timed and you wanted it dead nuts so the dealer took his time and did it exactly like you asked and then came back with a $275 bill for services rendered. Let's say it took 70 minutes to restring and tune/time the bow using the draw board, $125 for the set and 2 hours of labor ($75 per hr) since they always charge by the hour so it get's rounded up.
Now I know some car dealers even charge extra for special equipment and will the draw board or laser used to square up everything fall into that category? I know quite a few guys who would lose it if that was the bill handed to them but if you really want your archery dealer to start performing like you car dealer those would be the prices you would start seeing as if you want all that extra attention to detail you will have to pay for it as a lot of shops won't just eat those charges, they have to pay the rent for the shop and buy all the equipment and now have the expertise to do what you want which means the top of the line bow work you want will not be cheap.
Like I stated before I am not trying to stir anything up I am just trying to look at it from the point of view you had stated in your post.