There is no such thing as 'enough number of toys' for a child. Toys are the most important help in learning and growing up. They don't necessarily have to be expensive, or this brand or that brand. They just have to be safe for a child to play. Safety is the only determination.
Sometimes you may buy a toy for your child and he/she would play with it only for 5 mini minutes and throw it away... After a certain time however, the very same toy may become the favorite!!! There is no way to know.
Having said that you can help your child get inspired! Playing with your child TOGETHER with the very toy that you got, would open new horizons... Making a little boat 'a very special inter-planetary sailing vehicle' in your play' or using the little china tea-set as lab instruments might help your child widen their horizons...
Please don't forget that the best gift you can ever give to your children is your time and undivided attention. So play, sing, dance and entertain together with you children as much as you can... This is the utmost key to 'self-worth' and 'confidence'!
Enjoy all your games and activities :)