It's been a minute since I've been 'round these parts- that darn like thing keeps happening. Xenorama has soldered on, and there are new issues to be had-
22- Dynamic Dinosaurs! https://www.amazon.com/dp/1724778390
23- Kung Fu fun! https://www.amazon.com/dp/1729719724
24- Japanese superheroes! https://www.amazon.com/dp/1793448426
And all the rest of the issues before them (well, from #15 on) are still in print!