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You reach your levels faster with dice but keep in mind that overall you will lose your money meanwhile if you try slot machines and bet on them like Sweet Bonanza without buying the bonus you have a chance that while you level up to win additional amount of money,big amount of money if you are lucky which you can continue to use towards your next VIP level,I have tried Sweet Bonanza and if not for my greed to get rich faster I would be already Gold or Platinum while I am just 60% Bronze right now only because of my greediness.
The idea is just to get faster way to reach the next level while we are few percent remaining (under 5%). In this case, in house games is far away better than 3rd party games. If we are talking about the chance of additional winning, plinko can be the best alternative. I will avoid slot for wagering purpose because it is a slow game and risky game. Only those who have big bankroll will be risking money on slot games for wagering purpose,,I am not that type of gambler so I'll prefer to play in house game with lower house edge.
Well, Maybe if I saw this comment like 3 or 4 months back, I would have argued with you that you are wrong, but then, based on my personal experience after having played both slot and in house games, I sure agree with you.
But still, both slot and in house games still have their different pros and cons, and one for each I have discovered is that in slot games, winning is hard, but when one does win, the chances of winning tangible amount of money is always higher when compared to in-house games.
For in-house game, winning is easier, but the multiplier is not always that big, most especially in plinko game that you have mentioned, this is one of the most easiest in-house game to win, but winning anything tangible still very much boils down to luck.