I have a PhD in Family and Consumption Economics from the University of Illinois at Urbana-Champaign. I received it in 1993, so it was a long time ago. It was probably my biggest sacrifice, spending 7 more years out of the workforce.

It didn’t feel like a sacrifice at all. I was self-supporting throughout grad school (although assistantship pay is hardly extravagant). I relished my time with fellow grad students, and I had time to sit on the Quad and watch people. I did have mood swings during this time and spent some of it depressed, but most of graduate school was idyllic.
To me, sacrifices never feel like sacrifices. They feel like life. In one moment, I am earning much less to make my way through graduate school. In another, I am taking time to help someone else with a class. A choice made, the consequences accepted. Just life.