The big advantage is that you can use procreate on iPad, which is exclusive to iOS. If you want to use a Windows only drawing app or need a larger display than 12.9 inches, then a drawing tablet is more ideal and an iPad may not be the best choice.
However, to use your iPad as a drawing tablet with a MacBook you could download an app like Luna Display by Astropad or another duet display alternative, which works to solve for this.
Graphics tablets without a screen are significantly less expensive than an iPad, while Pen Tablets (drawing tablets with a screen) are somewhat in the same price range ($350+)
iPads are very user-friendly, suitable for various tasks and ideal for beginner artists… while Drawing tablets are designed specifically for digital art
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