Cheers for all the comments, but can we please keep this on topic:
Don't bother yourself with the ins & outs of the business side of things - They have been well researched by people who are already involved in multiple businesses in the region.
As far as Fucktards go - 1 chance given - deliberate bumping or dangerous driving = a 2 minute stop & go penalty or your removal from the kart or a ban from returning altogether - dependent on severity of retardedness.
So Back to the Question:
Would you throw a kart around a track in Bali if you had access to a great track with well maintained 'proper' race karts & electronic lap timing for $25 AUD per 15 minute session?