A little more explanation on this -
When you have a store and have hundreds of new items listed at all times then it is cheaper and smarter to never let and item end.
Each time you start a listing it counts against your number of monthly listings that you get charged for so if it runs continuously you pay once, if you end and start it once a week you pay for or five times.
Also your place in the listings search on Ebay is at least partially based on the number of an item that you have sold (that little red number near the top of the listing).
So If I run out of an item I have sold 128 of and end the listing then I start over at zero items sold when they get restocked, which really hurts sales.
Obviously this isn't an issue for somebody who sells used items or an occasional video game, etc.
I am talking about the level where we pay $2K monthly in Ebay fees and $300+ daily in postage.
I am not making fun of folks who don't already know this stuff, the average user who just buys stuff to fix saws has no reason to know until they see a $12.00 set of oil seals listed at $2012.00 and then curiosity kicks in