The biggest difference in my opinion is that you get MCE for no extra cost, and you'd earn another 20% RDM. So how often do you fly, because you're looking at ~$72/mo to get those extras, and so it might depend on your employer's travel policy.
The other option, which also gets you Plat until December 2020, would be to just pay for a Platinum challenge. It requires flying 12,500 EQM in 90 days, according to the Wiki (link below), but is only $240 (or $480 to have the status while you fly the 12,500 EQM instead of after earning it).
HELP DESK & FAQ: Gold and Platinum Status Challenge