Blast from the past - Idle Bouncer

I've been playing Idle Bouncer for the past several days. It was kinda cool at first because you have multiple tubes with all the balls bouncing and at least two or three tubes would contribute to your income.

After the sixth and final tube runs out of steam, you "improve" the first tube, which makes it a few orders of magnitude stronger than the sixth tube, and start working your way through the tubes again. What I don't like is that when you get to this part of the game, only your current tube produces any relevant income, so the rest of the tubes just sit there doing nothing. I haven't even "improved" all the tubes once yet; I'm only on the first improved version of tube five and it's just a huge slog to make any progress. Yet I see there are twelve layers of improvement for each tube.

Has anyone made it far into this game? Do the new abilities from improving the tubes actually alter the gameplay in any significant way? Or perhaps it is just a p2w game? There is a cash shop, and the game itself is very stingy with handing out premium currency, so maybe that's the case.

Looking forward to your feedback.

x-posted from /r/incremental_games by /u/Punctuality