The Hatters boss will lead his side out in the League Two play-off final against local rivals Rochdale at Wembley on Monday after they overcame Wycombe in the semi-final.
Gannon has relied on recruiting young talent from the lower leagues as well as bringing players through their academy and the starting XI that beat Wycombe 1-0 in the second leg had an average age of just 22.
Players such as 20-goal leading scorer Liam Dickinson, 22, and midfielder Tommy Rowe have been at the heart of County's impressive campaign but, after the sale of Ashley Williams to Swansea for £400,000 this week, Gannon concedes he may struggle to hold onto his prized assets this summer.
"It's very difficult to see that potential in players but our track record is good and our experience now suggests that our youth policy has been worthwhile and we'll continue with that," said Gannon.
"We've ended up selling £700,000 worth of players this season alone and that is a great testament to the way we are running the club as a business.
"We are certainly making great progress and we would like to think we can break into the Championship in the near future.
"If we are able to bring this young group of players up a level and keep them together and allow them to develop then there's no reason why we can't continue that journey.
"But it is going to be very difficult to hold onto these players, especially if the top 20-25 clubs in the country start to come knocking with a reasonable price.
"Players have their own ambitions themselves and we want to see them go as far as they can."
The Hatters enjoyed a remarkable end to their league campaign and a run of just two defeats in their final 15 games saw them climb from 10th position in February to fourth.
County have already defeated Rochdale twice this term and although just 20 miles separates Edgeley Park and Spotland, Gannon believes recent results and local rivalries will have little bearing on the final.
"It's going to be special because it's two great footballing sides who play the game in the right manner," he added.
"The fact it's also a local derby, it's at Wembley and the huge prize of League One football next season all contribute to make it a fantastic finale to the season.
"Rochdale are a completely different side from Wycombe. They're an energetic young side who like to play open, expansive football.
"We have beaten them twice this season but I don't see that having a bearing on the final. I am expecting a very even contest and the form book goes out of the window." Tweet