Browsing categories is becoming more and more difficult as eBay removes many sub-categories in favour of item specifics.
Many buyer and sellers are up in arms on eBays's boards over this as they do not allow the buying experience that buyers want. I find that the items specific pertinent to some items I sell do not even exist yet so no sub-category no suitable item specific so no browsers.
Buyers give up when faced with a category containing 800 + items and another some 1500+ they will only look at the most recent or earliest finishing most in between will be ignored.
We are losing the supermarket scenario, where a buyer pops in for one thing and ends up with a basket or trolley load through impulse buying.
For eBay the equation is many listings, few get viewed, a proportion get sales, eBay always gets fees regardless, so why care