If the iPad was a standalone business, and had no access to the Apple ecosystem or brand, do you think it would still generate ~$20B/year? Obviously we can't k

If the iPad was a standalone business, and had no access to the Apple ecosystem or brand, do you think it would still generate ~$20B/year? Obviously we can't know, but the point is success is relative. Some people might expect better from Apple and so their standard for success is higher than $20B/year on one of their flagship products.