Why do most investment scams conducted over the Internet and e-mail involve penny stocks instead of S&P

Question:

Why do most investment scams conducted over the Internet and e-mail involve penny instead of S&P 500 Index

Stocks
Stocks or shares are generally equity instruments that provide the largest source of raising funds in any public or private listed company's. The instruments are issued on a stock exchange from where a large number of general public who are willing...