if you have an auction running for 5 days you can bet only 5% of the action happening on your item happens in the first 4 days and 23 hours and 30 minutes , 95% of the action will happen in the last minutes

In the majority of cases, you're probably right. There are always exceptions, though. There's one very successful seller who gets bids typically with days to go on alot of their items, which usually sell for more than they're generally worth as far as the median price. It's good if you can get to that stage as far as having a perceived high standard and likability across most of your listings.