If you don't want to buy yet, hire! We have a fleet of quality pianos available for rental at very competitive rates.
On the other hand, you're not going to know just how far your child is going to go with the piano in much under three years, and it might be better to buy.
If you do decide to purchase, we have, from time to time, good quality instruments (no junk!), with a known history, properly serviced and sold with worthwhile guarantees.