How would you handle 1 gp = 1 XP from the editions of old?

@mikemearls @JeremyECrawford How would you handle 1 gp = 1 XP from the editions of old? What would need adjusting?

— Thomas (@shroudedincloud) September 26, 2016

Big thing would be finding more uses for spending gold. I'd also give xp for magic items based on value. #WOTCstaff https://t.co/AW05f7mIp9

— (((Mike Mearls))) (@mikemearls) September 26, 2016