I have never had 1 inquiry on any of my 100+ BIZ domains, and I've had some pretty good dictionary ones. I've mostly dropped them all in the last year apart from about a dozen short (xx, xxx) domains, and a few more for brand protection purposes. For me BIZ is as dead as the Dodo. I would say this extension is as bad an investment as .WS. At least I've had 1 inquiry for one of my 100+ .WS domains (which was agreed but never completed). Also my .WS domains mostly dropped too now. I'm trying to get to ZERO with both extensions within the next year.
i think your doing yourself and wallet big favor.
there are tons of nice quality .biz domains dropping daily on expired site
keywords that'd not drop in say org net etc..
this alone tells you a lot about extension and its situation
sure now and then you'll get lucky with some sale.. most of it will be say high XX.. or low XXX.. but that's hardly enough to cover renewals of holding enough .biz domains to get you those occasional lucky sales.
a month or so ago godaddy had a 1$ biz promo
I ran a final test on this extension before I leave it for good.. for around $150 I bnought around 150 domains.. 2/3 of it was LLL.biz .. whatver was left available on expired site at that time.. rest was just a quick list of decent single keywords.. if I do not even menage to recover the $150 for this list.. that'll be the end of it for me. and even if I do, it's still never be worth owning these 150 domains for the full $8 or so price.. so say around 1k for all 150 of them.
so either way, .biz is doomed.
even some pretty good crypto domains.. hottest trend around.. don't seem to sell in .biz!
even .info, anotehr not so great extension, beats ,biz hands down.. I sold two crypto .info domains this year for around 2k total.
cheers