It is difficult to estimate future value in a field where equity-events are four to six years off.
One problem with desi domains is that since the market is so new, valuations are depressed. You could price for the market now (not recommended) or where you think prices will be or should be in one or two years.
Here is one tool that you can use to see the prices of single domains:
DN Sale Price- Domain Name Sales Price and History
A trend that I expect in future is to see multiple domains grouped together and sold as a bundle.
Rick ‘the domain king’ never buys a domain unless he has some business plan for it in his head.
I never register a domain unless I’m confident that lots of people will be interested in registering or buying it later on. Or, if I plan on developing a domain into a site myself.
I don’t touch gambling domains because as a U.S. resident, there are legal risks from being involved in that industry.
I don’t see a lot of price elasticity in domain sales. You could estimate a buyer’s ability to pay. If a company or promoter is prepared to enter a capital-intensive industry, for example, they will have enough capital to buy a $4k-$8k domain name.