My cons are as follows:
Storage of items.
Organization of items.
Maintaining the condition of items that I'm selling/storing.
If you aren't putting up but a few items for test on eBay, then storage isn't an issue.
But if you end up adding hundreds over time, then yep, storage of items can and does become an issue.
There was a time that I had hundred's of items up on eBay for sale at any point and time.
Not only did I have to have storage for them, I had to be organized... majorly organized.
Especially when I was selling books.
Alpha vs genre, I had to figure out my organizational style, ya know?
What worked for me, might not work for another.
Fees?
When I was a larger eBay seller, I paid $40.00 a month for a store and organized it by categories.
The fee scale was different.
http://pages.ebay.com/seller-center/faq/stores.htmlThink of it as Personal Seller Account vs Professional with Amazon.
The categories help you to get more Search Engine Optimization, too.
Double hits per se by those search engines.
Paypal or using your own payment processor for your payments = immediate payment most of the time. (unless there is a hold put on funds, then you aren't required to ship until the hold/echeck has cleared)
I do miss not having to budget for payouts.
Every day there was a new transfer out of my Paypal and heading towards my bank.
But, that was also in the 'I can sell anything on eBay and it will sell fast' days.
I can't honestly say how the items I sell on Amazon would do on eBay as I have never attempted selling on both venues at the same time.
I do have Amazon competitors that do sell on both.
When you're on eBay, search an item and in far left hand column check the completed list and it will show you what items sold for and for how much.
I do use this often to price my items on Amazon..
Of course, I add $$$ more to my price.
But, then again my fees are more with Amazon and storage costs.
Six in one hand, half a dozen in the other.