I'm there now.  I'm trying to migrate to a new office computer and I can't get some of the older software I'm used to using.  This isn't a big deal.
The big deal comes into play when I can't install software that's been paid for on the new machine.  I've for one where it isn't taking my license key and the company hasn't emailed me back after 2 weeks.  I think I'm pretty much screwed on that one and the bureaucracy that's now in place for any software purchase almost requires an act of Congress to get through.  I'm probably going to have to learn to live without it.