I tend to not go to dealers with that attitude. However, I will often ask the dealer if they can match, or come close to, an internet price that I can show them on my phone. If they can come reasonably close to the price then I will buy it from them, to support local business and the local dealer. If they are not even interested in discounting then I ask them why I should buy from them and not from the opposition.
You may find that if you take the wheel and tyre to a regular tyre store then they will change it for you for about $20. However, they may not be able to balance it. You can get a motorcycle wheel balancer from HF for about $40 and do that easily yourself.