I picked up a decent hardtail with okay equipment a few years ago and did just fine. I upgraded to a nice FS last week because a lot of the trails nearby that I like to ride have a shitload of rocks and I don't feel like getting good enough to make that pleasurable on a hardtail.
Yep, I hear you there. I remember riding a hardtail in my twenties and it wasn't long before I upgraded to full suspension. The rear shock is a welcome addition over uneven terrain.