I think you always need something listed. I would personally only list no more than 2 or 3 at the SAME time, and even then am reluctant to do that.
If you can, I recommend listing 3-5 a DAY - at times about 1 1/2 hours apart. But for many, myself included, this is not possible. Also I think that Best Match 'killed' this being a good option. Though if I have more than 1 item to list the same day, I don't list together usually.
I always list using my last name (CRIDER) so anyone browsing sees my name - HOWEVER with best match - eBay's default search option, you are hardly likely to be seen at all. (BM is the WORST idea that eBay has EVER had, along with the star ratings! And even the top seller's badge as even terribly bad sellers - fraudsters - get it, and get prime visibility - as if eBay is condoning thieves and frauds). If your name is too long, use another thing to distinguish yourself - many use their initials (for instance, I could use JEC, instead).
This MIGHT help in people browsing to see you over and over, and start looking for you. It can work against you, too, of course, they may look at one of your works, not like it, then learn to pass over a closer look at any more when they see your initials.
Two years ago I would get well over 100 views per item (usually 150). There was an IMMEDIATE drop once BM was bought in. Now I am lucky to get 10 viewers, unless I promote myself online. A recent work got over 200 hits, but that was due to a special 'promotion' I ran.
You should list every day if you can.
The whole thing is to stay visible.
Those who have been absent from eBay listing for a while, find it difficult to get back 'in' (I know, I'm one - I haven't listed since April of 2009, until recently).
These aren't rules to live by. They are just my experiences, yours may be different.
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~Jillian
artist, Jillian Crider
... google me!
~Jillian
artist, Jillian Crider
... google me!