you can get by with a serger depending on what you are sewing?
I can do many kids clothes and diapers and blankets with serger alone, but to make the clothing and blankets look nice, I use my sewing machine to finish them off.
The serger gets the ends of fabrics and serges them together, so you can't go into the middle of your dress and serge on a pocket after the dress is sewn, for example, but you could do it with a sewing machine.
I love the serger, though!
It makes little girls dresses, diapers, and blankies so FAST
threading it, on th eother hand...I don't love that!
It takes me about 20-30 mintues!
(mine has 4 threads, a sewing machine has 2, the top and bottom)