The biggest challenge with selling LEGO online is actually shipping the larger, more expensive sets. You can easily find yourself paying $20+ on large sets ... plus you have to find a box that will fit and make sure the set isn’t going to be damaged.
If you can sell locally (FB market place, Craigslist, Next Door), you will save a ton on fees, shipping, scams and picky customers. Selling on here is also safer, as was mentioned.
- realbigexplosion likes this