The phrase "advantage of maintaining" is correct and usable in written English.
It can be used when discussing the benefits or positive aspects of keeping or continuing something, such as a practice, relationship, or system.
Example: "The advantage of maintaining a healthy lifestyle is that it can lead to increased energy and longevity."
Alternatives: "benefit of sustaining" or "merit of preserving".
"Whatever else you can say about empire, it had the advantage of maintaining order and suppressing anarchy," Mr. Gaddis said.
"The alternative vote system has the advantage of maintaining the benefit of a strong constituency link; allowing MPs to be not simply policymakers, but also community leaders, community organisers, and the strongest champions for neighbourhoods they know and love".
They have also the advantage of maintaining a clean environment.
Use of small ligand molecules has the advantage of maintaining the minimal hydrodynamic (HD) size.
On the other hand, porous non resorbable scaffolds have the advantage of maintaining ridge shape and dimensions during healing time.
The authors reported that double-button fixation has the advantage of maintaining the reduction during the biological healing process.
These have the advantage of maintained physical structure, but many disadvantages, particularly those caused by lack of rapid diffusion of oxygen into the preparation.
Muscle fiber experiments have the advantage of maintained three-dimensional arrangement between the myofilaments in half-sarcomeres and preservation of accessory proteins that may affect contraction.
The Soviet government was not prepared to forgo the strategic advantages of maintaining forces in Austria as long as it perceived Germany to be a threat.
But even as these companies preach the gospel of Internet integration to the public, some of the best-known merchants are telling government regulators that their Internet and physical-world operations are distinct and separate businesses -- and therefore should enjoy the tax advantages of maintaining separate operations.
