Thanks for the in-depth info, Dennis! I do need a couple clarifications for the book: 1)Are there any variations of the regular black card? 2) What is the color of the $5 Multi-Game Credit cards? And, are the colors always the same between type A and B? 3) Are there any obsolete Express cards? 4)What are the colors of the $15 and $25 Express cards? I thank you in advance, Steve