The best kept secret to buying toys (or any collectible) with the thought of maximizing an ivestment is simple good, common sense. Always buy the best condition item you can afford. This translates to your purchasing the closest to MINT condition you can find. And, the older the toy the better you want the condition.
With the older the toy, the conditon becomes even more important when you are buying for investment. Remember buying poor condition will almost always mean a loss or lower monetary return on your investment.
This being said. . . why DO people collect toys?
2. Recapture their childhood
3. For their children (or grandchildren)
4. Display purposes (say, let’s decorate the play room!)
5. Collect a particular model of car, boat, plane, character
6 Just for fun!
I collect because I like wheels. Why do you collect?