I like sewing, but it is not relaxing like knitting or crocheting. With knitting or crocheting, you generally have a lap-size project that you only have to give minimal attention to - I frequently knit and watch a movie (I've even tried knitting and reading with some success). When you are done knitting for the day, you roll up the project and stick it in a basket. No mess.
Sewing, on the other hand, consumes your life and apartment. Instead of sitting primly, watching TV, you are crouched on the floor (see above) or hunched over a sewing machine, biting your lips. Scraps of fabric and pattern pieces litter the floor and my husband was afraid to sit on any of the furniture because I had pins stuck everywhere. I made that dress in record time because I couldn't wait to get my apartment clean again.
Sewing is exciting, but an all-consuming task. Or maybe I'm just messy!