What's the point of increasing credit limit if you can just get another credit card?

Suppose you have 1k limit and now you need more but for some reason you are denied credit limit increase. So you simply get an extra credit card from another organization. What's the difference?|||One credit card with a $2000 limit will give you more buying power than two credit cards with $1000 each. You might not be able to make a $1500 purchase with two $1000 cards. I know you can't do that on line.|||yes if you can find one. credit cards are getting more strict.