Is the ratio price/hours of gameplay really relevant here? A long and boring game for cheap is not more interesting than a short but amazing experience for a higher price.
Otherwise, being first of it's kind may increase barriers to value perception. Aggressive pricing may get people in, and if that is successful, perhaps a new genre is started.
Net gain, and worth the pricing investment.
Pricing high may marginalize the value perception, limit growth, and someone else may still see the genre potential, come in with another title and aggressive pricing.
I'm inclined to go with aggressive pricing as an investment into a new genre and play the longer game on overall revenue.