I think few points in favor of purchasing machine which makes fresh rots are:
1. Above all issues of price and noise and cleaning, freshly made rotis taste the best, similar to bread. So please consider satisfaction of eating as well.
2. Rotis are time consuming to make and very difficult to perfect so people make them in batches and store, which is equivalent of frozen rotis, so the idea of getting a fresh roti for each meal without efforts is worth looking into.
3. Even if the cost is approx 1000 dollars over the period of time you might save money by not ordering a takeway or going out much, especially for a big family.
4. Considering a 1000 hefty price tag, if so much cleaning is only required, may be it is not worth and yes the noise too.
But again it is a balance of satisfaction, efforts, headache and price to make a decision to purchase it or not.