Other than the fact that you would have been playing the game for all of that time in between. Christ what is wrong with people! If you don't think that paying a bit extra is worth playing the game for a year, then don't bother. Hell why not just wait for 10 years and then buy the game then, it will be cheaper than buying and playing it as time goes along!
Are you saying it is a priviledge to be promised the greatest thing ever, pay 50€ for it and then realize all you got a 'a nice framework' and placeholder gameplay, get to play
that for six months, and then smile and bend over when it turns out those coming later on, who aren't burnt on the lackluster gameplay yet, get to pay a lot
less overall for the base game + expansion?
Where is you dignity ?
Obviously FD can do without my money for now, else they'd be trying a bit harder to get it via sensible pricing. If the base game is any indication anyway, it will be years before Horizon has enough meaningful content to justify the price.