But Before we get there:
The first step of coming up with a travel plan is deciding where you want to go. If you don't know what your goal is on eBay, how on earth do you plan on getting there, and how will you know when you do? Once you have a goal in mind, here is the kicker: it's going to take a whole lot more work than you expect. In fact, in The 10x Rule, Grant Cardone contends that reaching your goal will take 10x longer and 10x more work than you expect! So what is the way forward? Taking MASSIVE action. If you want to sell drastically more than the average eBayer, then you need to act in a way that is different. Massive and drastically different.
What a business model isn't:
Unlike most businesses, you can just slide into selling on eBay and make your first sale within hours or days. You don't need a business model before you start. You don't raise capital or consult a marketing service. But eBay is no different than anything else you might do - if you want to run a business, treat it like a business. That means having an actual business model and procedure in mind for how you do things. Hoping to find better things at a thrift store is not a business growth model. If the extent of your scaling strategy is: "Oh well...I hope to find better things. And sometimes I go to different thrift stores..." then you have some thinking and defining to do. Before you look at scaling, make sure you know what you're trying to scale. Do you go to thrift stores, then sell used crap online? Or do you strategically plan on how to acquire product and maximize efficiency and profit within your growing business...
The 4 Ways to Scale: