If you list on a no sale no fee basis this is about what you will get in most circumstances and for a very good reason. We all know how much the market has now turned back to a buyers market, many listings go through a couple of agents before selling. If an agency spent $500, $1000 or more on all the listings they have without any owner input they WILL go broke. Therefore, if you took 2 properties, one with advertising funded by the agency and the other funded by the vendor, which one do you believe will be more likely, at the very least, to be adequately exposed to the market.
Every property needs more than an agencies database and website listing/s to be considered "adequately exposed". Ultimately the choice is yours, I just figure the more people that know the greater chance of a buyer. When I sold my agency recently I made sure the business was marketed everywhere I could. I didn't want to risk missing a buyer who might pay me more. I now know I got the highest price I could because everyone looking to purchase an agency knew about the sale.
And sure, there is no guarantee of a sale from it, but I can guarantee you will receive a lot more enquiry. One of the most dissapointing aspects of selling RE is when a vendor doesn't contribute to marketing the property and then ends up receiving incorrect feedback re the property and then makes judgements based on that feedback.
Good luck.
Kev