It's priced at £50; £65 and £80 depending on which version you buy.
I see the demo available for Win 10 and Xbox 1, I'll probably try it on the console.
A couple of months after Forza 7 was released for Xbox 1/Win 10 at £50 for the standard version the GAME store offered the disk copy instore for £18.00 which was too good to sniff at so I bought a copy and have played it a fair bit, I think it's very good.
But by buying the hard copy I forfeited my chance to also play it on Win 10, that only works if you buy the digital download copy. But £18 compared to £50? No contest
Previously I've moaned a bit cos I couldn't get Gears Of War 4 to work on Win 10 but I tried it recently and now it does
I don't know why. I paid fifty quid for GOW4 incidentally and you can now pick it up in a GAME store for £15.00.
I haven't played the Xbox 1 much lately, about all I've visited is Forza 7.
Also worth mentioning is my local GAME shop - Lewisham - closed recently and now the nearest branch is further away at Bromley.
I hope I'm not being cynical here, just factual, I'll try the Horizon 4 demo and look forward to the whole game but I'll wait til price drops before full purchase.