Offer your thoughts or opinion on the input financial query or topic using your financial background.

Purchasing options between the bid and ask prices, or even at the bid price or below?
People must simply be willing to match your orders if they know about it. You can sniff orders out if you can see them or predict them. For instance, you can look at an order book and decide who you want to get filled at, especially if you are looking at different quotes from different exchanges. So you can get a "better" fill just by looking at what someone is willing to pay to enter/exit their order as well as what exchange they placed their order through, and send an order to that specific exchange to match them. You (or a program) can just watch the level 2's and place an order as soon as you see one you like. The orders on the level2's do not reveal ALL interested market participants. Also many brokers have difficulty updating options quotes. Finally, options & market volatility can inflate or decrease the price of options by large percentages very quickly.