@Dinah46
Some hosts do this and some don't.
I do leave a welcome hamper in my listings. I tend to leave some homemade bread and cakes. I must admit if I don't have time to do both, I always make the bread but might buy in some locally made sweet nibbles, whether it be cakes or biscuits. A bottle of something to drink, a small bottle of milk and some good quality crisps or pretzels or something similar. It always goes down really well with the guests, especially the homemade bread, but occasionally i find a full loaf sat there after the guests have left.
I price our listings accordingly but for me I try to think of what I would like if we arrived and someone left some goodies. That is why there is such a mixture, for myself I would like some savoury nibbles and a glass of wine and my husband would like something sweet and a coffee !
Hope this helps.