I have owned a copy of Peek's Griechische Vers-Inschriften: Grab-epigramme for more than a year now and, from time to time, I dip into it. Such a collection may not seem to be the most uplifting volume to read cover-to-cover, but the following might provide some food for thought or an appetite for reading epitaphs.
Ecclesiastes 7: 2-4
2 It is better to go to a house of mourning
than to go to a house of feasting,
for death is the destiny of every man;
the living should take this to heart.
3 Sorrow is better than laughter,
because a sad face is good for the heart.
4 The heart of the wise is in the house of mourning,
but the heart of fools is in the house of pleasure.
On a slightly different note: for a funerary monument anticipating the Hollywood Walk of Fame, see <http://www.lgpn.ox.ac.uk/image_archive/tombs/t8.html>.