That's not fair at all. As games get older they get cheaper. A year ago on steam I could buy every GTA game ever made except V for £5. Does that mean that GTA 5 should have been £5 too? No you wouldn't.
The images show my situation. I have plenty of TU's and I'm clicking on the tile at the end of the stairs and nothing is happening. Is it a minor bug or am I doing it wrong?