Don't waste your money on a breadmaker, but if you find one cheap or free second-hand go for it!
I make our bread, it works out cheaper but I buy cheap flour in bulk. I also make pizza bases, rolls for lunchboxes, pitta bread and naan bread and it does work out quite cheap really. Our weekend lunches of lentil soup and home made olive bread works out really really cheap!
Once you get the hang of making dough, you can add all sorts of stuff, it is quite fun, especially if you involve the DCs.
Cinnamon raisin buns, banana bread, cheesy bread, olive bread, pesto bread, honey and sunflower seed bread, add pureed root veg for some vegetable bread, ditto pumpkin bread (with nutmeg), onion bread, garlic bread...
I'm hungry now