Shameless RIP OFF!!! 32x price hike
The useful software lifetime of an office suite is 10 years (bare minimum).
$15 for 10 years = $ 15
$49 * 10 for 10 years = $ 490
That is a whooping 32.6x price hike, not just tenfold. And who says that the $49 subscription fee is cast in stone for the next 10 years, and Microsoft isn't going to hike it further ???
You may want to consider moving to LibreOffice ...