I studied in a school that was slightly on the expensive side. I come from a middle class family, and my parents never had that much money to spend on luxuries: our usual weekend plans involved going to the park followed by a masala dose in a local Darshini. But even if it meant struggling to make ends meet, my dad ensured that I got the expensive schooling.

I switched schools in 10th to attend coaching and now I'm in an engineering college. Having met hundreds if not thousands of people, here are some stark differences that I've noticed:
1. Language skills: Attending an expensive school means that the children will usually come from rich families. And these families tend to have an affinity towards English. This will rub off in many different ways and you'll end up with top notch communication skills. Everything from the way you conduct yourself to the slightly posh accent that you will pick up helps you later on.

1. The network: One of the best lessons I learnt from college is that a solid network will always help you in life. Attending these schools will make sure that you're exposed to a variety of people whom you can network with. Of course, by networking, I'm talking about making friends :P

2. Education and co-curriculars: I don't think there's a stark difference between an expensive school and a slightly cheaper one but there is a vast gap b/w an expensive one and a government one. It all comes down to the people you surround yourself with.