TriMoon ugh don't get me started on this F2P/P2P topic because you will be buried...
(I've been playing computer games since before the Internet)
I have to laugh. Yeah me too, and whilst there are all kinds of things game companies can do to make money without direct sales most of them involve advertising and I hate advertising with a passion...
What I like about Pixel games is that the P2W is subtle, it's there, but it's not required. If you want to play these games for free, you totally can, but there is a bunch of stuff you probably won't have access to. Also they keep the ads to a minimum. I actually don't really like the new speed up mechanics, partly because it doesn't work all the time, but mostly because it's ad based.
As with all things in life you work out what is and isn't acceptable to you and decide if you will continue to play based on that.
I stand my my comment that it's unlikely that Gem quality locos will ever be released for Gold regardless of level, it's just not part of the way the game 'works'.
Plus can you imagine the outrage from people that spent gems on a x power HL this week if a similar one appears for gold next week?! #callaWAAAAAAAmbulance