If the price makes sense, go for it. Here's a bit more background around digital textbooks.

Pros:

• Digital textbooks are extremely convenient - it's very common for you to have access to the book immediately after purchasing it, and you don't even need to leave your room to do that.
• eBooks also occasionally have interactive features like 3d models, in-chapter quizzes and videos - which can aide in the learning experience.
  

Cons:

• They're expensive - we find most of the time eBooks cost more than used and rental alternatives.
• Digital textbooks are often structured as rentals - meaning that you won't have access to the material once your course is over.