User blog comment:Oioiaussie/Buy playgrounds? A common misconception!/@comment-71.35.126.199-20120612025219/@comment-5039776-20120612031147

Starflowers are great - they pay for themselves in a few hours and generate quick money. However, in the long term, they are not the best as they generate 300 coins per pixel per day (based on 15 collections per day - you may get more; if you had 20 collections, then it would be 400 per pixel per day).

VFTs take a while longer to payback te investment but make 600 coins per pixel per day.

Both are good and starflowers work well to generate money quickly.