To most "coffee people"'s palette, Robusta is like burnt shoe leather strained through an old gym sock. Vietnamese drink a lot of it since they grow it there, and it's been successfully marketed in the US by "extreme amounts of caffeine" brands.
> for Arabica to be good the roast has to be right and the brew has to be right
But the OP doesn't have to worry about that, they just need to find a way to market their beans to a specialty roaster. Small batch single origin Arabica can make a tidy little profit.