Am I the only person who thinks Arkanoid is one of the lamest games there is?...
And I've said it before and I will say it again: a non-"high resolution" spinner works JUST FINE...
Two opinions you're welcome to have. But people who disagree with the first probably disagree with the second.
Some people don't mind a 400x300 picture zoomed in to fill the screen; others demand a 1600x1200 (or whatever their screen is) or nothing. Some don't mind the non-high res spinners on high res games; others... do mind.
If you liked the original game and it's controls, you'll need a high res spinner; otherwise you'll be playing with the 400x300 pixelated spinner on the 1600x1200 game.
IMO, while you might be able to play arkanoid okay with low-res spinners, it's not the same, and not as well, as with a high res spinner. If you can't tell the difference, then, sure, you don't need the HRS. If you can tell, and it matters to you, then get the HRS.