The Alps Vs Poland/ Bulgaria

As someone who has spent the majority of their life skiing the Alps (and America) I'm curious to hear opinions on what Bulgaria and Poland are like? Alot of nursery/ school friends, who perhaps didn't grow up skiing, seen to have it as their go to.

I appreciate it's cheaper, but how much so? No one seems to be able to quantify it. Having priced up holidays the difference only seems to be a couple of 100, appreciate food and drink is considerably cheaper. And what's the main trade off? I'm assuming infrastructure, terrain and just skiable area? From what I've heard and read it doesn't seem to be as good and the Alps is better. Curious to hear other opinions and wether it's worth considering for a family trip with kids?