As one of the most respected clubs among Europe's heavy hitters, Arsenal have remained a part of the continental elite thanks to some fine use of the transfer market over the last 30 years.
Dating back to a time before Arsene Wenger reigned at the Emirates Stadium, a wealth of astute signings have been made by the North London outfit, helping them on the path to greatness.
Here, we've ranked the 20 best investments ever made by the club, taking into account a number of criteria for each signing, including cost of the transfer, the context in which a move was made and the overall impact, and therefore value, that the player brought as a result.
It's due to that last aspect, regarding value in retrospect, that some names have been left off the list, where obstacles may have blocked a player's way, regardless of how much the club's fans may adore said individual.
For example, Tomas Rosicky's time at the Emirates has been blighted by injury, and despite the glimpses of quality and high expectations upon his arrival from Borussia Dortmund, the Czech veteran has been omitted as a result.
However, the Gunners have had far more luck with their business in other instances, the best of which have been compiled for debate up ahead.