To grow awesome melon you must keep the roots warm as possible, very consistent water schedule, and a lot of fertilizer.
Black plastic and drip tape or soaker hose, you will have sweet delicious melons with little hassle.
The problem with buying melons is they are picked unripe then shipped a few 1000 miles etc
Giving the melon time to ripen on the vine allows the flavor to develop. Just like cannabis. And tomatoes.
For an interesting melon, the variety AfterShock, is a personal sized melon and has an intense flavor of melon bubblegum. Original and outstanding!
Buying quality seeds makes a big difference as well. For some killer heirloom melons check out Baker seeds. Don't use them for main crop just try a plant sometime. Sub-freakin-lime!
just like with high quality cultivar type cannabis