While investments should be chosen for their potential to hopefully make you some money, shareholder perks can be a welcome bonus. These are no longer automatically given as they were when people held paper certificates, but some platforms still pass them on through the accounts.
For example, a simple search will show that if you buy Marks & Spencer shares through a platform such as Hargreaves Lansdown, you'll be sent vouchers offering discounts across the Marks & Spencer product ranges. In order to get these, you'd need to get in contact with the broker – the same applies if you want to attend shareholder meetings.