Did Yahweh do us a favor by denying us eternal life?

[Belacqua]

I deffo don't think eternity sounds awesome, but I wouldn't mind an additional one or two thousand years.

Sad to say, discussions on this subject tend to conflate different meanings of the word "eternity." This is from Wikipedia:

Eternity in common parlance means infinite time (or the quality, condition or fact of being eternal).[1] In classical philosophy, however, it is defined as what exists outside time as describing supranatural beings and forces, whereas sempiternity corresponds to the infinitely temporal, non-metaphoric definitions, as recited in requiem prayers for the dead.  Thomas Hobbes and many others in the Age of Enlightenment drew on the classical distinction to put forward metaphysical hypotheses such as "eternity is a permanent Now".[2]

So while some Christians talk about eternity as endlessly passing time, the theologians/philosophers generally mean "outside of time." 
God in eternity, or heaven in eternity, couldn't be boring, because there is no time there.

The best book I know on this (and several related topics) is The Great Chain of Being by Lovejoy. 

http://gen.lib.rus.ec/book/index.php?md5...BE5FFC02B6

He describes how Christians have traditionally posited different views of Heaven. For some, it's pretty much like our current life, only better. But for theologians, it's almost always fundamentally and ineffably different. And since we are creatures who live in time, it's very hard for us to imagine being in eternity.