When you are shopping for a sewing machine, there are several factors to consider. The first thing you should do is consult several websites such as http://choicemart.co.uk/arts-and-crafts/sewing-machines/best-sewing-machines/ which offer sewing machine reviews from real users. These reviews can tell you which machines are the easiest to use, which have the most useful features and which are the most economical.
You need to decide what features you want in your machine. Will you be doing only basic sewing, or will you be embroidering as well? How often will you be using the machine? Do you need it to create only basic stitches, or do you need any fancy alternatives? Do you want a mechanical or an electronic machine? How much money are you willing to spend on a sewing machine?
Contact retailers to find out which of them will allow you to try the sewing machine out in the store so that you can get a feel for it before you purchase it. Some may even offer free sewing lessons! You may also find out about money-saving opportunities like trade-in allowances or sales.
By reading several sewing machine reviews ahead of time, you will know when you enter the store which machines are of interest to you.