A Semi-Intelligent File Backup

Purpose:  Create an efficient backup process for large directories.
Notes:    First, the script enumerates all of the files in a specific directory, and stored that data in a variable (SourceFiles).  It then check for a matching file in the backup directory.  If it does not find a matching file, it simply copies the file and the directory structure.  If it does find a matching file, it looks to the LastWriteTime property, and only replaces the backup file is the other file is newer.  I do plan to make this a renditional backup at some point when I am more awake.

#Set Directory Paths
$SourceDirectory = "C:\Scripts"
$BackupLocation = "C:\Backup"

#Get all files contained in Source Folder for processing
$SourceFiles = Get-ChildItem -Path $SourceDirectory -File -Recurse

#Create an array to store the output
$MoveStats = New-Object System.Collections.ArrayList

#Action
$MoveStats = ForEach($File in $SourceFiles){
    $OldPath = ($File.FullName)
    $NewPath = $OldPath.Replace($SourceDirectory,$BackupLocation)
    #Create new object to store output
    $FileObject = New-Object -TypeName PSCustomObject -Property @{
        File = $File.Name
        OriginalPath = $File.FullName
        BackupPath = $null
        Action = $null
        }
    #Check for existing file in Backup Location
    if(Test-Path $NewPath){
        #File exists.  Check to see if needs updating
        if(($File.LastWriteTime) -gt ((Get-Item $NewPath).LastWriteTime)){    
            #Overwrite the file (Will change to renditional in the future.)
            $FileObject.BackupPath = $NewFile
            Copy-Item -Path $OldPath -Destination $NewPath -Force
            $FileObject.Action = "File Updated."
            }
        else{
            #No action taken
            $FileObject.BackupPath = $NewPath
            $FileObject.Action = "No action taken."
            }
        }
    else{
        #File does not exist.  Copy file.
        New-Item -ItemType File -Path $NewPath -Force | Out-Null
        Copy-Item -Path $OldPath -Destination $NewPath
        $FileObject.BackupPath = $NewPath
        $FileObject.Action = "New File Copied."
        }
    #Returning Object
    $FileObject
    }
    
#Display Output
$MoveStats | Select File, Action