Can a market-savvy Rogue re-appraise an object to give it a higher value?

@mikemearls Material Component question: Can a party with a market-savvy Rogue re-appraise a component to give it a higher value?

— Dee Pennyway (@DPennyway) June 28, 2016

I'd consider it, but only if the PCs took active efforts to corner the market. https://t.co/2bBEkxuoJK

— (((Mike Mearls))) (@mikemearls) June 28, 2016