Amenities are just marketing gimmicks in Bangalore

Okay, I'll be honest – I'm really confused about project amenities now. My 2BHK se upgrade kar raha hoon 3BHK ya villa mein. Builders jaise Olympia Enchante brochures mein bohot kuch promise karte hain, but possession pe kya milta hai? Maintenance charges bhi high hote hain. Does this actually improve resale value ya tenant attraction? Ya sirf dikhawa hai?