I agree with Sass, I wouldnt work too hard to explain myself. She can either have cheap nails, or good nails, I would just say "you get what you pay for". You could work really hard to convince her to pay your prices but you may come across as desperate, and also if she is a cheap client (we all know the sort!) she is more likely not to look after them, miss her appointments and generally not to be a good reliable regular client.
Keep your prices where they are, My prices are higher than my immediate competition, and as non p.c as it may sound I like to think it keeps the rff raff out!:lol: Of course I'm not trying to deter people, but I do want to attract the 30 plus ladies who are more likely to be mature enough to take care of their work, and to be able to afford to be regular clients. I do have the odd young client, but most of my clients are over 30.
p.s I'm NOT saying that over 30 is old, I'm over 30 myself!!:lol: