I start with the base price of $175 and factor in how far away, how big, location in building and difficulty of removal meaning time it takes. This is a side line hobby and folks like JP who do it for a living will charge top dollar as would I if that was my business. Some areas you go into folks may not be able to drop a 300 bill for a removal so for me it is what I feel is fair for all parties in the negotiation. If they have been sprayed already say can not do!
I charge what I feel is a fair price for the job. I do my best to be fair with the customer and myself. To insinuate that I charge "top dollar" as you mentioned is inaccurate and I certainly would not want to get a reputation for someone who charges "top dollar".
I make it a point to know what the competition offers & do on occasion have to make adjustments here and there to account for what the competition has to offer.
Getting back to the original question, inevitably you have to consider what your time and effort are worth.
Getting bees out of structures is a lot of work and the most difficult way of attaining bees.