I'm with Daisy - I think it's a waste of time, energy, resources especially your precious water, and a lot of garden space for so few melons. The biggest reason, though, is that I found the ones I grew at home didn't taste any better than the ones I could buy at the store.
That's become my guiding philosophy in growing edibles - it must be something that bears lots, or over a long period and the harvested fruit or veggies must taste better than store-bought.
Planting some thing like a big row of raspberries would be a lot better use of the space, plus they are perennial (come back year after year) and they are a crop that gives you lots of fruit that is much better than store-bought. Berries like strawberries that really don't ship well unless they are picked too green are also something that's worth it to use your garden for.
