If your Realtor wants to have a discussion about a price adjustment you shouldn't be surprised.  Afterall, the market isn't static, it's dynamic.  It is constantly changing and if your Realtor is keeping up with what's happening in the neighbourhood (re: prices of comparable properties) and the local market, this discussion might come sooner (than 30 days) if the market is changing rapidly.

Their are two reasons why a Realtor might want to have a discussion regarding a price adjustment:  

a)  other homes in the area have lowered their price

b)  many more homes have entered the market place, which puts downward pressure on prices

So, what do tight underwear and the 'List Price' have in common?  They both require an adjustment.