Celtic are a bigger club than Spurs that much is not even a debate. Spurs have the luxury of being in the league for years if Celtic had 20+ years in the league they would be wealthier then Spurs and more players would want to play for them because of their aura and the fact that they are a more known and bigger club. Are Spurs richer now? well ya obviously but I am not talking about now I am talking about a hypothetical where Celtic have been in the league for years I see no problem in them overtaking a club like Spurs. Spurs used to be a usual mid table club for years up until 2010 they have done well granted but if Celtic had the luxury that Spurs have they would Dwarf spurs with all due respect to your club.