I started out my first machine my grand mother gave me it was a Sears nice little compact light weight sewing machine they retailed at that time for 119.00 and were on Sale for 79.00. Great little machine for some one that didn't sew much well I had the fun of sewing till it broke a needle I am thank-full I never put my eye out with it since they would break and then hit me in the face. So the first machine I bought was a Pfaff and at that time it sold for $1000.00 dollars. I loved that machine and have sewn it to death after 33 years of hard use. Buying the best machine that you can afford is a good idea but you have already gone through 3 machines so getting one that will last and do all that you require is a must. Gently used machines are a great way to get a better machine with out having to break your bank. Think what you would really like and make a list of features and benefits then you will be more educated for what you really need. I still am dreaming of a Bernina 830 with all the bells and whistles and will probably keep dreaming but who knows maybe one day I will have one till then I keep at least 3 machines busy all the time. A serger by baby lock, a pfaff 7570 and a Singer 301. Good luck shopping and hope you find a great deal.