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Thermal soak (with regard to intake charge temps) is more of a concern with superchargers (varies by design), hot-air setups (SC or turbo with no intercooler) or setups with inefficient intercoolers. Some of the great benefits of the turbo are that the heat generated by compressing the air is only a part-time affair (while you're boosting and for a cool down period after) and the engine is generally starting from a cooler state to begin with. It can become an issue if you're trying to drive up the side of a mountain with any kind of compressor but that's not something we generally try to do with sports and GT cars... We're just trying to hit a target speed as quick as possible and once there our engine essentially rests while keeping that speed (unless you're trying to maintain a speed of 120MPH, of course). Decent charge cooling on any kind of setup will generally allow for a substantial and safe increase in boost.

Generally, an increase in static compression produces less power per cycle than an increase in boost (dynamic compression) would with the sole benefit of an increased torque baseline (nice in a truck, especially if hauling loads). It also lowers the ceiling on how much boost you can run VERY quickly (crappy in a GT car).