Bangalore property's 'all-in' cost is a total illusion, isn't it?

The all-in cost of a flat in Bangalore is a massive shocker, way more than builder quotes. I just moved into my Prestige flat in Ramamurthy Nagar last month. Pre-launch price looked good, but yaar, stamp duty, registration, PLC, parking, then interiors... my 1.5 Cr 2BHK ended up closer to 1.8 Cr. Nobody tells you this clearly upfront, it's like a slow drip of expenses. Was pre-launch really a discount or just a psychological trick for builders to lock you in? What's your experience with these 'all-in' costs? Did you find any hidden charges *before* possession? Seriously, it feels like builders hide half the cost. Change my mind.