Study on Wife & Girlfriend

A study by a smart guy says: 

A Wife is like a TV 
A Girlfriend is like a MOBILE 

At home you watch TV, but when you go out you take your MOBILE 

When you have no money, you sell the TV and when you have got money 
you change your MOBILE 

Sometimes you enjoy TV, but most of the time you play with your MOBILE 

TV is free for life,but for the MOBILE , if you don't pay, the 
services will be terminated 

TV is big, bulky and most of the time old! 

But the MOBILE is cute, slim, curvy and very portable 

Operational costs for the TV are often acceptable, but for the MOBILE 
it is often high and demanding 

TV has a remote, MOBILE doesn't 

MOBILE is a two-way communication (u talk and listen),but with the TV 
you MUST only listen (whether you want to or not)