That's very cheap at $150 but at least you can show us a demo of the casino so we can check the difference between your casino and other casinos, or do you have a working model if you don't have a demo, a good casino template usually priced at $500 and you have to add game providers products since yours is in the house might as well check the configuration of your casino
it's strange that it's that cheap, especially since the OP didn't provide a DEMO for everyone to see and test how the casino works to make it easier, besides why didn't he just build it himself why should he sell it that cheap, even though it could be profitable for him and become a money machine for him, but I'm not sure the OP sells casinos that cheap it could be just another scam 