I almost agree, i.e. second-level-legacy 0.7.x line is good enough for most of web needs, so indeed there is no really strong urge to upgrade to the current stable, though some nice features came later. What I do not agree is keeping really old 0.7.6 instead of upgrading to safer and more stable 0.7.6y (and if you do, going to the latest 0.7.69 is obviously the best solution).
Upgrading to at least the latest minor version (0.7.6y as you say) may indeed be a good idea since there have been some security vulnerabilities discovered e.g.