What are the advantages and disadvantages of mailing?

What are the advantages and disadvantages of mailing?
mailing which is said to mean the sending of a letter (usually covered in an envelop) from one location to an intended recipient in another location can have numerous advantages and disadvantages as described below.
Advantages

1) can be used to send any form of goods (which can be limited when you adopt e-mail).

2) secured and protected under insurance (which you will need to buy when sending the mail)

3) is an expression of your value and time for people. this is because it requires more efforts and money than e-mail.

4) can be sent to any part of the world with a mailing list.

5) it is affordable when you measure it in terms of value it offers.

disadvantages

1) mailing is more expensive than email.

2) it takes more time to deliver.

3) prone to lose as a wrong person can claim identity of the right person.

4) not a good way of sending emergency notes as it can take time to reach the recipient or not reach him at all.

5) is not commonly used in today's world due to high advancement of technology and adoption of the internet..