Each to his/her own on this issue. Like
Rruuff Day above, I want something in my C8 as an emergency back-up in case of a flat. So I've got both a tire repair kit to pull out the nail/screw and plug the hole, plus a small compressor to pump up the tire. The hope is that a roadside temporary repair is possible, which will enable me to drive to a repair shop and potentially save the tire...and more importantly not risk damaging the rim. I'd do this for any vehicle that doesn't have a spare tire, but that's just me.
I tried posting direct links to amazon.ca to give examples of what I bought, but they didn't show up, so instead you'll get the product descriptions below.
I couldn't find my exact compressor, but it's something like this:
Air Compressor Portable Tire Inflator, 12V DC Car Air Pump with Digital Pressure Gauge Auto-Off, 150PSI Fast Small Tire Pump With Emergency LED Light for Cars Motorcycles Bicycles Balls Other Inflatables
I purchased a tire repair kit from the States, thinking it would be better quality since some people commented that their "pull/insert tools" were cheap and bent during use. So I thought paying more for a "made in USA" set would solve that. Ironically, I paid more but got what's likely the same thing, since it too was "made in China" even though the description said otherwise (oh well). Mine is similar to this:
Tire Repair Kit, 34pcs Tire Patch Kit with Plugs to Fix Punctures and Plug Flats for Car, Motorcycle, Truck, Tractor, Trailer, RV, ATV, ARB
And for what it's worth, I also carry a tow hook in case a tow truck driver doesn't have what's needed to safely pull a C8 onto a flat bed. But again, that's just me.