Press-on nails are worth it for most people on pure cost: they cost a fraction of a salon manicure and you apply them yourself in minutes. The real question is whether the trade-offs in wear and finish matter for you.
The savings are large and immediate
A salon gel or acrylic manicure is about $40 to $80 plus tip, every 2 to 3 weeks. A press-on set is about $5 to $30 and you reuse quality sets a few times. For a regular wearer that is roughly $155 a year at home versus $1,100 or more at the salon, around 85% less, with no break-even wait because press-ons are cheaper from day one.
What you give up
Press-ons usually last a few days to about two weeks, versus two to three weeks for gel or acrylic. Fit is not always perfect on every nail, and intricate custom art is harder to match. For many people the time and money saved outweigh this; for special occasions some still book the salon.
How to get the lowest cost per wear
Buy reusable sets rather than one-time stick-ons, remove them gently so you can wear each set two to four times, and keep a few dollars of glue and prep on hand. That is what drops the per-manicure cost into the low single digits.
Press-ons vs doing gel at home
Press-ons need no UV lamp and no cure time, so they are cheaper to start than an at-home gel kit and faster per manicure. If you want gel-like durability you might prefer a home gel setup; for speed and lowest entry cost, press-ons win. Run your salon price through the calculator to see your savings.