I bought non-pronounceable, non-chip, LLLL.xyz's for $0.5 few months before they had that $0.01 sale. Total cost was $30 I think, Sold those at NamePros for $31 just few weeks before the $0.01 sale. $$$
My top mistake was registering variations of top keywords as if they are the second best keywords. My second top mistake was renewing them for many years. But still they were better than what all others were registering and renewing. Also adult domains seem to be very difficult to sell, although just the opposite was claimed. In the past I was selling dropped .info's quickly. Now it doesn't happen. I think this is related to Sedo.
World-Reality.com was my very first .com registered back in 2003 and developed.
Dropped few years back. I was fishing for WRS.com back then, but it was taken already, regret it because I had no clue LLL.com will have such a value in the future.