I think that's sad she would say that.
Yes, I know there are machines that some feel they must have that cost thousands of dollars but my little one that was $500 a few years back has done almost 300 quilts and I can't tell you how much other sewing such as garments and draperies, etc.
Buy what you can afford and get a good brand. I love my two Janomes and my Featherweight but I also have an old Touch and Sew by Singer that still is sewing fine after 40 years. I don't think I would buy from someone who told me I couldn't get a good machine for $1,000 personally, but that's just my opinion.