If you go on a vacation you will always have that experience. If you travel to that new country you will always have that experience. It will broader your horizons, open your mind to other people, other cultures. If you think spending $500 on some hero in some game that will always throw more game breaking heroes your way is any way comparable, then I don't know what to tell you as your priorities are way out of wack. It's not about "fun" or value for dollar. It's about compulsion, the inability to say no when you KNOW you shouldn't. That inability to say no from a small minority of players is why the prices stay high.
How many people are saying that they feel "wonderful" after spending a hundred dollars on Driller, or Konrad, or Jasmine, or Avior, or Daphene, or Lars, or Solomon, or Sagar, or Vespix, or Dina, or Lumos, or Chronos, or Havoc, or... I could go on and on and I could revisit this a year from now and list 20 more heroes that people dumped money on, making current heroes even more useless.