If you have a niche affiliate site that reaches a select, documented high-end demographic, you have a market ripe for marketing to select merchants and advertisers. Instead of offering this group access to existing, established products and services, you have the ability to negotiate special product purchase arrangements and exclusive service arrangements.
Start by understanding what your market wants. Ask and observe. Are they the super-wealthy who want access to the most exclusive independent concierge in New York or London? Do they need to outfit a large home with china, crystal and silver for 48? Or perhaps they want to take protective and evasive driving lessons from the undisputed master. If you have the market, the providers are likely to negotiate a special deal with you.
Specially negotiating a contract is worth it for the affiliate because it not only brings in revenue, but it solidifies relationships with extremely demanding people, who want exactly what they ask for. And many of them are accustomed to a life of negotiation, so giving them a price break on large quantities of goods shows that you are in tune with their desires. Merchants may be willing to call big orders wholesale accounts, and make money by eliminating the middleman. Just ask. And, while you may not get a price break on services (or you may, based upon the number of users you can potentially send them), you can negotiate to get them provided exactly as you define.
If you are a company