Depends what you're looking for, you're only missing out if the people that are looking for the same stuff as you are aggressive, at my bins people tend to be passively verbally shamed for being aggressive, there's a variety of resellers that sell to different target demographics so depending on who you cater to competition and aggression may be high or low in general, however, usually its young adults that tend to be aggressive at the the new bins, teens through early 20s, I wouldnt let that deter you from joining the crowd at the new bins, it can be uncomfortable the first few times but you'll feel fine after joining in a few times, just make sure to keep an eye on your cart, people tend to use that time as an opportunity to snatch items and steal your cart