Seems like your brother doesn't know what he's talking about!
A simulator is not a waste of money! Quite the opposite. You will learn faster, and have much more fun with your real planes than ever before. He's just afraid that you will fly better than him
Well, somebody has to pay for it, or it's not going to be made. So he think it's OK for all of us to pay for it, but you should get it for free?
Remember, the guys who make these sims don't have a lot of customers compared to software giants like Microsoft, Electronic Arts, and others. That's why the sims are relatively expensive.
Buy a sim, you'll love it!
Lars