In general, it's a good idea to buy a piano of slightly higher quality than you think you deserve

In general, it's a good idea to buy a piano of slightly higher quality than you think you deserve, and then grow into it. If there are several pianists in the family, aim your purchase toward the most advanced. A higher quality piano is an excellent investment, and will hold its value well. So, if piano lessons don't work out in the family, at least you can re-sell it at a price fairly close to what you paid for it.