Yep, there is no perfect one-size-fits-all solution.

Thanks for your comments. Collectors come in many varieties. Some, especially at the top of the food chain, go after Old Masters because those artists are not making any more. Here is an excerpt from the Ultimate Guide to Art Marketing,
“Contemporary Art Embraces Graffiti Art and Branding.
Some of the artists who enjoyed the most remarkable growth in auction house interest and sales since 2005 include KAWS, Mr. Brainwash, and Banksy. Many of the top 50 artists, as ranked by Artnet in this period, were born in the last half of the 20th Century. It is difficult to imagine that the dealers and collectors of the 1980s who were engaged in acquiring Van Goghs could have foreseen how street art would become a market mover powered by the rise in appeal of younger artists in the 21st Century.

Changes in the American art market and the global art market mirrored those in culture and society. The most monied collectors who bought the top of the market sought artworks representing diverse genres that held substantial price premiums. That left the next level of affluent buyers to pursue the next best pieces available.”

Interpretation is the super rich go after what they perceive as the cream of the crop leaving the nouveau rich to battle over contemporary artists born after 1946. The interesting thing is for most artists such things have little influence over their art business. Successful artists today grow their own, which frees them from worry over what other artists are doing. Artists need a relatively small group of loyal buyers to make a nice living from their art. That is an advantage nearly exclusive to visual artists.