Not really. I don't know of any much more convenient ways to facilitate auctions that predates eBay. I'm too young, really, to say out of experience how things were before eBay, but personally I went directly from browsing second hand stores and newspaper classifieds to use the local eBay clone which afforded it the additional convenience of only listing local items, but that was eventually bought by eBay as well.

For the general consumer I don't think that trust in eBay or having to go someplace else to buy knives and license plates is enough of an inconvenience to outweigh the inconvenience of trusting your bitcoins to have roughly the same value the day after tomorrow, or having to run a daemon to access listings.

I don't think you're wrong or that you have misplaced your priorities somehow, but I think you'd belong in category 1 and/or 2, and for as long as those aren't representative of the broad public I think services like OpenBazaar will mostly be attractive to those operating in the legal grays and blacks, simply thinking in terms of who's got most to gain from anonymity, lack of governance and untraceable transactions despite their inconveniences.

But let's say it attracts some 10000 (+/- an order of magnitude) privacy-minded cryptoanarchists that are all there because they don't trust sites like eBay or can't find some categories of legitimate items there because of some of eBay's rules. The sheer breadth of items, buyers and sellers afforded by a much more generally convenient site like eBay or CL won't be available to them, and I think that's going to turn a lot of people off that aren't explicitly looking to buy items that are much harder to get elsewhere. Maybe they'll find their knives and license plates but it'll be switchblades and counterfeits respectively.