It makes sense that if you list 2,500 items compared to 250 items your sales will be higher. It still does not mean if you have a store, you will have a higher sell through rate. The only reason for a higher rate is because out of 2,500 items you have an increase in "items in demand". I could list 250 items in demand and still outsell some sellers with 2,500 listings if they are listing common items, items in saturated categories, and have over-priced. This whole store thing still does not have me convinced with the exception is if you have more than 250 items to make the store worth it. Even then you can just have 2 accounts instead of one.
