However, the party apparatchiks who are sent to the conference by their electorate organisations are the last people who need to be reminded of how close the election is likely to be - and thus how vital it is to get National-leaning voters to the polling booths.
The real audience for yesterday's top-table lectures was those voters who think the September election is a foregone conclusion and they do not need to worry themselves as to whether they make it to the ballot box or not.
Both John Key and Steven Joyce - National's election campaign guru - made a point of stressing that Labour did not have a monopoly on the so-called "missing million" - the number of no-shows at the last election.
To the contrary, ten of the 12 electorates recording the biggest drops in turnout between the 2008 and 2011 election are currently held by National.
When it came to numbers, Joyce produced the most sobering of the lot. While some polls might suggest National could not lose, the party's average level of support across all the major polls was a full two percentage points lower than at the same stage of the cycle in 2011.
And we all know how close was the final result of that election.
Little wonder then that the mood of the conference was more tentative than triumphant.
