Good morning NL,
This little "smoke and mirrors" routine is called - re-listing...
We are having a very vibrant discussion about this exact subject, so make sure you read this:
As you can see .. many realtors use this as a way of concealing information and making their listing a "refresh" by not disclosing the exact DOM (days on the market) ...
Their agenda is simple ... show a false listing and raise or lower the price without much notice - much like the Carfax commercials on TV .... "like new sedan, barely used..." .... as it gets hauled away.
Most consumers fall into the trap .. but for the savvy ones like yourself that have been watching and tracking that market for the last 3 or 6+ months, they catch the masquerade ...
Many states are now trying to ban this scenario, but because of the MLS situation it won't happen tomorrow.
In this particular case, you have a new listing agent ... listing agents depend on the other 213 agents in their area to sell their product, but even they know this house has been on the market for many moons ... you'll hear much chatter, but probably no action.
I would definately stick to my original offer, I would also go in totally approved with bank letter in hand ... I would also show the printouts, the MLS #'s and the pictures from last year ... if need be, I would just go around the current agent and call the owner and negotiate from there .. if nothing else, he'll call you back when he cancels any current contract.
The only person that should ever inhibit you from buying a house, is the owner himself ... certainly not an agent.
Good luck and happy hunting.!