Okay, I'm a new seller on eBay.  I sell vinyl wall quotes/decals.  I've had my store open for almost a month.  When I first opened, my listing limit was set at 10 listings or $500 in sales per month.  About a week after opening, I used the online request form to have my listing and selling limits raised.  After answering a few questions, my limits were raised to 100 items or $5000 per month.  This was great, because I have about 500 individual items that I'd like to eventually list.  Sales have been pretty good in my opinion (as far as being a new seller and not having much feedback).  But, I do have a few questions:

Listing Limits
At what point should I contact eBay to request higher listing and selling limits?  Most of my items sell for $9.99.  So, at 100 items listed, that only equates to about $1000 in total sales that I could acquire in a month, but my $ amount is at $5000.  Will eBay take this into account if I call them?

Quantities
Right now I only have a quantity of 1 for each of my items listed.  If I were to give each of my items more than a quantity of 1, would each count towards my listing limit?  So, item number XXX has quantity of 10, would this count as 10 listings?

One thing that I've noticed with some of the other sellers who sell similar items, when you go to their store it may show that there are over 35,000 items.....but what I've come to notice is that if a listing has some variations and quantities higher than 1, each variation counts as as item.  So, seller has a listing for item XXX with 3 variations possible and a quantity of 10 available.  Does this count as 30 items?  That's what it seems to me.  Correct me if I'm wrong...

Also, some of the sellers will show quantities of "More than 10 available" and a link with the total number sold.  How do they do this?

Listing Fees
When my listing limits get raised and I start having quantities other than 1 available, do I pay a listing fee for each quantity?  Currently my store subscription gives me listing fees of $.05.  If I have a quantity of 10 available, will my listing fee be $.50 for that item?

Re-Listing Items
As of right now, I have my item duration set to GTC.  Currently, with my listing limits, I had to wait until the first of the month to be able to re-list my items.  With GTC, does the item automatically renew each month on the day that it was originally posted?  When an item sells, it's not available any more until I can re-list it.  If I have a quantity of 10 and someone buys 1 and there are 9 remaining, is the item still active?  If so, do I still pay the listing fees next month?

Page Views
Lastly, what' up with page views?  When I first opened my store and posted my 10 initial items, my page views were pretty decent (again, decent for a new seller).  Each day after that, my views were on a downward slope....When my listing limits were raised and I posted the other 90 items, my page views again were really good.  But, as with the first set of listings, each day my page views continued on a downward slope.  Very strange...it almost seems that when you list new items, your listings will show up higher in the search results.  Maybe I'm overthinking this, but it's quite a coincidence....

Anyways, thanks for taking the time to read this and any replies that may come.