In a complex, constantly changing city, niche businesses keep things humming.

"They're really more interested in our niche business," he said.

He also seeks out niche businesses that perform well regardless of economic conditions.

Because they are such a niche business, the pair think that it will always be a little difficult making a profit.

But to others, including some computer experts, that argument sounds like special pleading from a niche business too long dependent on Government money.

"It fits their strategy of trying to dominate niche businesses while growing the drug operations."

But digital audio over pay television systems seems to have found a foothold, even if it may be only a niche business.

By 1963, the company had tried several small niche businesses, such as cab services and love hotels.

This is a niche business; they're only trying to get two or three hundred thousand people to listen.

And how does one develop a niche business like collecting?