What school????

Have just been to a parents evening for pre-school at the posh end of the village and what I want to know is, is it really worth all the fuss and the stress? Does a child at this pre-school really have a better quality of life at forty than a child who stays at the playgroup? All the parents are fussing round like headless chickens worrying whether they will make the list and I am just thinking does it really matter that much for a three year old. PLus I have the alcohlic brother in law from hell making his way to my door as we speak and I don't think I can stand it!