Beyond construction delays and cost overruns, they worry assets will not prove as profitable as advertised.
With effort, the plan may prove as profitable as some of the city's other recycling ventures.
Big Oil can still have a decent future as Big Gas, but that will not prove as profitable.The biggest impact of declining demand could be geopolitical.
The hope is that viticulture will eventually prove as profitable as tobacco, but farmers aren't the only students at Surry Community College in Dobson, which has its own vineyard and winery.
"Business is about doing business, it's not a surrogate for government or public service".Even if the green markets that Mr Immelt dreams of do arrive as soon as he hopes, they may not prove as profitable as his shareholders would like them to be.
The state's movie business will only prove as profitable as its workers prove employable.In this section The next great disruption Behind the scenes A modest proposal Ink blots Rabbi to the rescue Close and caustic America and the space race Correction ReprintsGeorgia's skills shortage goes beyond the film industry.
Even if the new industries take off, they are unlikely to prove as profitable as finance.In the meantime their finance-promoting groups, Jersey Finance and Guernsey Finance, are trying to draw assets from new countries, and are setting up offices in markets like China and the Gulf.
Hundreds of other companies would need to come on board, and corporate renting will need to prove as profitable in other UK cities as it is likely to be in London.
If wave energy proves as profitable as many say, Scotland could produce more than 1,300 megawatts by 2020, enough to power a city the size of Seattle, according to some estimates.
It's a formula that's proved as popular with gamers as it has profitable for the developer and the myriad publishers it works with.
