A defence of Benitez's transfer activities (?)

Recently, it was brought to my attention that someone had posted a defence of Liverpool, and specifically Benitez's, transfer activity.
At first glance, the conclusion is clear:

Total Players Bought: £228,976,000
Total Players Sold: £145,100,000

Total Net Spend: £83,876,000So, that's a total spend of just over £83m in 5 years at the club.