From Longman Dictionary of Contemporary Englishan embarrassment of richesan embarrassment of richesLOT/LARGE NUMBER OR AMOUNTso many good things that it is difficult to decide which one you want → embarrassment
Examples from the Corpus
an embarrassment of riches• I look forward to having the letter you wrote tonight before you called-altogether an embarrassment of riches!• They eventually suffered from an embarrassment of riches: they laughingly killed all their enemies and created their worst nightmare.• We have an embarrassment of riches here!• The Prado's problem is an embarrassment of riches, with nowhere to put most of them.• If there is not quite an embarrassment of riches, there is enough to make the small investor blush at the choice. 