It’s free money, however low its price falls, in that BTG’s the result of a…
It’s free money, however low its price falls, in that BTG’s the result of a fork from the main BTC chain. If you held BTC at the time of the split, you now have an equal amount of BTG.
Pros
Through BTG, you won’t need expensive, enterprise-quality mining equipment to profitably mine a BTC-like chain. GPU mining should, in theory, have a decentralizing effect.
Cons
Over the past few days, the BTG development team have become embroiled in a pre-mining scandal that’s made them seem incompetent—and even nefarious, to some in the community. Evidence suggests the BTG team started pre-mining BTG on Sept. 28th, performed in secret and without feedback from the community. If that date is correct, BTG’s devs would’ve accrued approximately 200,000 BTG between now and then.