I realise its not on topic, but it has been part of the discussion (and it doesnt have its own thread - screw it, i'll create one!)... i've just noticed on the Planet Coaster website, they're taking pre-orders. Im not suggesting people dive in, but its a price which is something that adds to the discussion.
https://www.frontierstore.net/games/planet-coaster-cat.html
£19.99 for the game on release ('Pre-order now to join us for a discounted price!').
£44.99 for the game, tv-shirt and wrist band (same disclaimer as above).
£49.99 for the 'early bird' version, no other perks listed, just early access.
Now, £20 is in the right ballpark as far as im concerned, thats the sweet spot, provided its a decent game. That said, it could end up at £25 or £30 at release.
I've said that the £30 pricetag on RCTW is a blocker (£22.50 if you use isthereanydeal to search) for me, and whether its unrealistic or not, im more inclined to buy at a £17.50-£25.00 RRP (and hopefully finding further discounts elsewhere, like Cities: Skylines Deluxe for ~£16 on launch, £22.50 RRP).
As i say, might be unreasonable, but i'd just wait it out, its not like COD or something where you'd feel disadvantaged going in 6mo late (not that i'd buy COD, or buy many full RRP games, though im comfortably 3-figures deep in Star Citizen), its just my line in the sand.