I bought one since I didn't own an LM Wave and since I thought that a limited edition model would be cool. It does look unique; however, too bad they didn't incorporate a "special" tool(s) exclusive to this 20th Anniversary edition.
It appears that the black anodized handles will eventually get scratched. I don't know if LM would replace or refinish these handles. If that is a concern for you, then buy it and store it.
I thought this model would be relatively hard to find; however, I see it advertised in many places. Although the dealer I bought mine from is sold out, I don't think they're as "limited" as most of us believe them to be. I think I paid the regular price (around $69?) for mine but have seen one dealer charging almost $100 for the same Wave.