I'm definitely an early gamer. For me, once I have purchased the Return Scepter there just is not enough to do to maintain my interest, and some games I don't even wait to get the RS before quitting and beginning a new game. Building a zillion crystalariums, kegs, and all the other things you do to earn gold just does not have the appeal for me that the challenges of starting a new game has.
The luck factor plays an important role in my desire to play a new game also. In my current game I had poor luck - no Ancient fruit seeds, no Mystic or Iridium stones at the Quarry, but it rained a lot the first couple of weeks which was a great help in getting my farm established. I reached level 10 Farming with my first crop of melons and Fishing was at 7. I farmed 500 parnsips per crop my second year, putting all crops in seed makers, and had my greenhouse full of Ancient fruit by summer and the first Iridium node I cracked open In Skull caverns (before reaching even level 20), gave me a Prismatic shard. The second day of autumn (where I am at in the game now) I completed the Community Center and am looking forward to getting my Ginger Island Ancient fruit crop planted.
In some ways I envy players like FG who have the patience to grind out gold, but that is just not what I enjoy.