Since 2003, according to The Sun newspaper, Abramovich has spent a cool £2 billion at Chelsea, with transfer fees and player salaries forming a major part of that outlay.
There hasn't been a decade like it in football, and one can only imagine what the next 10 years will bring for Chelsea fans and their Russian owner.
Rather than appearing to tighten the purse strings, though, Abramovich's spending continues to rival that of any club across the globe.
With the expected return of Jose Mourinho to Stamford Bridge this summer, rumors are abound of a £100 million transfer war chest. The Mirror reports this as part of Abramovich's plan to bring back the so-called "glory days" the Blues experienced under their Portuguese manager.
With Mourinho at the helm or not, if the Blues do indeed spend cash to those levels this summer, it will be a considerable statement as to their owner's hunger for more success.
The 2012-13 season ended all but a week ago, and already some of the world's biggest stars are being linked with moves to West London. Only time will tell where these expected new arrivals will rank in Chelsea's transfer history.
There have been some big hits and considerable misses at Stamford Bridge over the past 19 transfer windows before this summer. Bleacher Report remembers them all as we track Chelsea's spending since 2003.