Son of Buddha, there's plenty of books for Buddhist "beginners" that are affordable.....a search through any used book store, or on-line, say at Alibris, or even Amazon, reveals this.
In general, a beginner shouldn't be reading Zabmo Nangdon, or Guyhagarbha, or Yeshe Lama, anyway, in my opinion.
But what do poor Buddhists who are not beginners do when they have permission to read Zabmo Nangdon, or Guyhagarbha, or Yeshe Lama, but they cannot afford them?
Are you going to pay the 300$ they need to read all those texts?
What happens when the latest and newly translated tantric texts come out?.........do they have to fork over another 300$ to advance in their dharmic practice?