Based on the context and the answer, generate a question. 

Context: The nice thing about the Hewlett Packard calculators were that they used Reverse Polish Notation , which made operating so much easier . I used that calculator well into the 80 's , when it was finally stolen from my booth at the exchange . That calculator made me a lot of money finding the true value of options , despite it 's high initial cost . Things were so much easier back then .

Answer:

I may upgrade to a better calculator later .



What may happen if I owned a cheap nonbrand calculator instead ?