Lots of good answers but lots of missing info. as well. Pricing to sell in the current market does, in fact, need to factor in recent sales (including pending sales) in your area, condition/appearance of the property - from the curb and throughout, location (desirability - but also, does it get some drive by traffic).
MLS input is 1 piece of the puzzle - depending on the price point of the property and activity/experience level of the agent for listing properties, it may not be economically feasible for that agent to go beyond MLS input. Additional marketing venues may not ensure that the home gets sold, but it will generate exposure...an agent with expansive internet exposure (website with uplinks and/or print publications with additional online presence,)can provide that additional exposure. Also, providing numerous property photos on the MLS, plus a virtual tour (depending on the property type, condition), should generate additional interest. Enhanced/showcased listings on Realtor.com, virtual tours, and single property websites are available - they create marketing and time costs to the agent, which will determine the service level and commission charges.
This is a tough market, even for qualified buyers, as they now have a greater number of choices. This often leads to a drag on their decision making. The most attractive pictures, accurate descriptions that meet their requirements at an attractive price will be selected for viewing first. Keeping the home clean and as clutter free as possible, ready to show with short notice will greatly improve its showing traffice, as well. An agent who will take the time to promote the property at professional networking sessions may just meet the agent with an potential buyer. Interview agents based on their marketing plans, listen to their suggestions to present the property best.....full service or discount service - the amount won't mean anything if the property doesn't sell....which service will provide the greatest exposure & ultimately the shortest time on the market.....