You can buy Office for a one time cost of $149 for one conputer. I don't have a problem paying $9.99 a month or $99 a year for Office 365 for 5 computers and 5 tablets and phones. With 5 installations, that's enough for my laptop, my wife's, both of my sons and my mom. I can also use it on my iPad.

DropBox and Apple charge $100 a year for a terabyte of storage alone.

I really like JetBrains perpetual license, after a year, you get a permanent license to the version that was current 12 months from the time you subscribed - if you cancel your subscription in April 2018, you get to a license to whatever version was current April 2027.