Published by Infinity, Infinity is an all-in-one dropshipping tool for eBay sellers. We deliver hand-vetted, high-margin product leads daily to help sellers grow profitable eBay businesses.

By now, you understand the buyer’s funnel, the eBay algorithm, and why some items don’t sell. Here’s the simplest and most effective strategy: List 10,000 items.

This strategy is called Bulk Theory. It’s not about guessing what will sell, it's about testing at scale. Instead of trying to predict the perfect product, you let the market tell you. Bulk Theory works by using the Law of Large Numbers: the more items you list, the more sales you get reliably.

Think of it like this: some listings will have great titles but bad pricing, others will have great pricing but weak photos or keywords. But some, usually hundreds out of thousands, will hit the sweet spot. These become your winners.

This method removes the need for extensive product research. Each listing is a test. If it doesn’t sell, simply end and relist it to trigger the eBay algorithm again. After 90 days, delete the items that haven’t sold and replace them with new ones. The machine keeps moving.

Bulk Theory isn’t about perfection. It’s about scale, speed, and data. Once you have this process dialed in and you’re earning $1,000–$3,000/month from one store, you can scale to more accounts and multiply your income.

If you're ready to go big, Infinity’s Elite Plan is made for Bulk Theory. It’s built for high-volume sellers who want to dominate eBay.

Elite Plan — $120/month
• List up to 10,000 items monthly
• Access Premium Pre-Screened Leads for higher margins
• Enhanced guidance for eBay Business Scaling & Compliance
• Resale Certificate Guidance for Tax-Free Amazon Purchases

This is the tool serious dropshippers use to build scalable eBay businesses.

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