I've been playing through the RCT1 scenarios and noticed some oddness with the "Unlock All Prices" cheat. When you start a RCT1 scenario, this cheat is activated. It stays activated if you load another save game. But if you close the game, open it back up and load the park, the cheat is off. A side effect of this is that all the rides are set to "free", even when the park entrance is also free. So, even though I'm playing by only charging for rides, I have to activate the cheat every time I load my park. Of course I could just never stop playing so I won't have to bother with it. It's not a big deal, but I find it odd.