If these sales are confirmed (finalized), they are among the few exceptions. There are very few .biz sales in the five-figure range.
search.biz selling for $1200 is the confirmation of 'normal' market conditions, unless we see more sales like Web.biz in the future.
I'm not saying you can't make money. What I'm saying is that it's not a good investment overall.
.biz sales are automatically 'capped' at 4 figures no matter the keyword,
with very few exceptions.
But here we are talking about a name that was registered in early 2002, shortly after .biz was released. It's not like you can register names like these in .biz. Just buy some .biz now, and wait "a few years". You'll see