I have an extensive collection of old and new marbles and unfortunately the future for expensive CAC marbles is limited.  The $500+ marble collectors segment just isn't growing very much, if anything it is shrinking.  Don't get me wrong CACs are great and hard to come by but unless we build a new generation's interest in marbles and marble collecting the days of $800 exotics and guineas are numbered. 
The new Jabo Tribute to Legacy marbles are bright, bold, and unique.  Jabo only makes a few thousand of each color combination unlike the "millions" that some would want you to believe.  The glass that Jabo uses is expensive and high quality.  As for me I will continue to build a collection of old and new but I won't be spending much on CACs anymore.  The new Jabos are just too good!