Your offer is not excessive it if is what you are willing to take in exchange for the work. Everybody and every location has a different standard for each job. There are jobs that I would do for $30 that others might not do for $100 - and vice versa.
I approach the "Make an Offer" like this: I first ask if I would do the job at the advertised compensation. If so, I make an offer for what the highest amount I think I have a chance of getting. If it's declined, I'll grab the job at the advertised amount. If I would not do it at the advertised price, I think about what the minimum price would be for me to feel good about doing the job (based on my needs, local market, etc.).
Overall, the "Make and Offer" option is a tool that gives the MSC a huge advantage in negotiations. I don't spend too much time fretting over it - there are companies that offer good opportunities.
Hard work builds character and homework is good for your soul.