I won't starve - It hasn't gone way past - just a few hours. If you depend on eBay solely, then you are crazy for not having a backup in case something happens.
Sell on Amazon and eBay. Use 2 image hosting services - have a back up plan - it's just plain common sense.
I seriously doubt ONE day will make you starve - if it does, then maybe you should consider something besides selling your yard sale finds on eBay.