Why so cheap?

Sorry if I offend. But I'm going through so many threads looking for simple answers and I see 90% of us looking for the "cheap solution". I'm of the mind that, if it works for a long time, it's worth paying for.
Not trying ta be a dick about anything I'm asking. But, my question is only "how to keep rez temps cool in a high ambient temp grow via DWC. Of course I don't wanna spend more than needed, but cant we all agree that a few more $ for the hassle to be fixed is worth it?
Is the answer simply paying for a mid-high end water chiller?
Thanks in advance. Again, NOT trying ta sound snobbish/asshole. Lol. Just looking for a solution.
Not a massive grow, just tired if water bottles every few days. Rather pay for quality up front.
My last 1 plant grow gave me 1.5lbs after dry/cure. But I only made it through one summer. 2nd one i had a ton of issues and I'm 100 that it was due to 70+° rez temps
Thanks for reading. We are all in the same boat...truly dont wanna come off as anything more than an information seeker

Yeah just buy a decent brand chiller suited to your gallons and be done with it. What’s it cost, a grey market qp? Totally fucking worth it. Set forget, get pounds. I tried bottles, they went under the water fall and cascaded all over the floor, fuck that shit. And if your new to growing then yeah cheap is always in people’s minds. Failure is a high percent.

Cheap makes most sense to determine whether this is something you want to do or like to do to continue doing it. Affordability comes next...

It looked like you asked a question but followed it up with an answer? I don't know but, get a water chiller if thats what you need?... if you can afford it.

1.5lbs dried in a single plant is pretty impressive for someone using a setup that requires frozen water bottles. Cheers.

Could get a second res to recirc with and keep it outside the tent.
That silver bubble wrap insulation stuff knocks a degree or 2 off aswell.
Could knock 4-5*c off the temps doing both of those. Assuming outside the tent is a few degrees cooler than the tent anyway.
And running sterile as apposed to using bennies allows you to run a bit higher with less dramas.
Personally I keep my res at 25*c as much as I can help it. Goes downhill fast if it hits 30 but I don't even start sweating till it gets to 27*c. That's using sm90. Can't buy it anymore from shops but still available at ridiculous prices on eBay. A worth while investment though if you can find it.

Thanks fellas! Great advice. I just spent the $ on chillers. Works GREAT! Big ups to all of ya!

Edit...
Chillers combined w/wort coils