The Magpies are the latest big money side after a recent massive investment and Campbell is in a County squad which includes former Sky Blues Kasper Schmeichel, Jonnie Jackson and Lee Hughes.
Chris Coleman knows all about that having played for Blackburn Rovers and Fulham who both used their backer's money in order to get into the Premier League.
Speaking about his £2m move from Blackburn to then lower league Fulham, Coleman said to the CT: "I had been injured for 15 months at Blackburn Rovers and I was just desperate to play football.
"Blackburn were asking a lot of money for me but I couldn't get in the first team because they were doing so well and I was running out of time.
"No-one else would pay the fee except Fulham, so Kevin Keegan was in charge and I thought, with the money they were throwing about with the transfers and things, it won't be long before they get to the Premier League and I was right.
"I think they had a five-year plan but we did it in three, so I can understand Sol's motives.
"If someone comes into our division and starts offering £40,000 a week, then they are going to attract good players who are going to be the best in our league and eventually you are going to get out of the league. So if Notts County throw enough money at it, they will start moving up the divisions.
"If they get to the Premier League, then it's a different kettle of fish, but if they keep throwing money at it, they will achieve promotions.
"It's an enjoyable thing to be part of. At Fulham, we won the Second Division and the Championship, but we had the best team because we paid the biggest wages and attracted the best players and paid the biggest transfer fees. But it is still nice to be successful.
"The problem we had was when we got to the Premier League; all of a sudden, we didn't pay the biggest wages, we didn't have the biggest transfer fees.
"We were just another team trying to stay in the top flight. But trying to get to the Premier League, the money can make a big, big difference."
"Football is getting bigger and bigger, with people with so much money to throw around coming into the game.
"I think it was Rodney Marsh about 15 years ago who said that Robbie Fowler would be the first player to earn £100,000 a week and everyone laughed and said it would never happen.
"Now, some players are earning double that every week so I don't know where it is going to end."