I'll be the odd man out and say that I love this platform. It has one of the most affordable ways to 600whp. Above that, sure just go LS based. But the car is light enough that 600whp is very fast. They aren't Hondas, but they aren't THAT unreliable. The problem is when you come from a platform where you don't have to do anything for maintenance, these seem expensive.
I have less than $5K in mods, and maybe a grand in maintenance and my car runs pretty well in my opinion. It looks newer than it's 14 years, it looks more expensive than it's $6,000 book value, and it's fun to drive.
If you want 800whp, yes - just LS Turbo it and be done. Personally, I've had v8s and I am tired of the noise. I LOVE having my stock sounding (except for the whistle of hybrids and BOV) car blow past loud obnoxious v8s. I've gapped new ZL1s and Hellcat redeyes. From a dig, sure they'll probably take me just because of better gearing and an LSD, but I don't go to the track but once or twice a year and this is a street car so who cares? You shouldn't buy this car at all if you're drag racing. You shouldn't buy this car if you're doing 1/2 mile events. If you want a cheap, fast, value packed street car that has a YUGE aftermarket support that isn't a Mustang or Camaro or Corvette? Hell yeah. I think you learn the enthusiasts vs the 'want a fast car crowd' is by the desire to mod. My wife has a 2008 Escalade - is it stock? Far from it - wheels, 5/6 drop, longtubes, custom headlights, taillights, custom interior etc. Sure she could have just bought a newer body style, but then it's still just a stock car and no personality.