The Gers boss is confident the situation will improve following promotion.
The Light Blues are back in the big time after four years consigned to the lower leagues and will even qualify for Europe if they win the Scottish Cup.
And while Warburton, the Rangers manager, is confident the club can sell itself to prospective new signings, the problem is getting them up to Glasgow in the first place - due to a stigma attached to the Scottish Championship winners.
Rangers have struggled financially in the past, prompting their removal from the top flight in 2012, but are debt free ahead of their return next season.
"There are a generation of younger players who have grown up thinking of Rangers being in financial trouble and administration," Warburton told the Scotsman.
"The hardest job we have got is getting them even to come to Glasgow to speak to us, as bizarre as that might sound, because they have got this impression of the club in their minds.
"Once we can get them to the training ground and show them Ibrox, then it’s done. But this season, because we were in the Championship, some of them just didn’t want to play here.
"They question whether the league here is good enough. If they have got English Championship clubs after them, offering more money, then we have got a hard sell. But once we get them here, we can absolutely sell Rangers to them."
But Warburton is confident more players will be open to joining Rangers after their promotion - along with the recent FA Cup defeat of Celtic.
"It will be better now that we are going back into the Premiership. It is better after the Old Firm game," Warburton added.
"The beauty of that massive TV audience was that it gave Rangers a fantastic stage to show what we are about – the fans and the whole atmosphere.
"I think it did a world of good for Scottish football but it also helped us in terms of recruitment. We can say 'this is what we are about, we want more of this and there will be a minimum of four of these Old Firm games next season'. Hopefully that really helps with recruitment."
Warburton said last month he is targeting "four or five" new additions, a figure that could rise if they qualify for next season's Europa League.
Two new faces, Josh Windass and Matt Crooks, have already agreed moves to Ibrox from English League Two side Accrington Stanley.