For both sides the arguments are more political than financial.
Those who do vote will probably be mainly opposed to asset sales and sufficiently provoked by the present administration's course to register their disapproval.
That will give Labour and the Greens some ammunition, though National will point out they were elected with this policy in their manifesto.
It's a complex issue but here's a simplified version.
Assets are a revenue stream for government in the form of dividends.
Sell them and you get cash now but your revenue stream is reduced.
It's like having money in the bank - each year it adds a bit of interest.
Selling assets is taking money out of the bank and spending it and then seeing your smaller nest-egg get less interest.
In short, a prudent financial adviser might say, long term, asset sales are not a good idea. But with our triennial elections, politics is often about short-termism.