Ouch... seeing aluminum tear like that is always cringe-worthy. Sadly about 90% of factory and about 75% of aftermarket wheels are just cast aluminum. It does the above.
Pressure-cast units fair a little better though; I know first hand from a little mishap after some road work. They cut a deep trench in the ground around a truck sized steel access hatch. I was forced to drive onto that hatch and then off of it... and I believe my wheel slipped off the corner of that hatch at an angle. The corner must have caught the inner lip of the wheel as the car's weight fell on it, and bent the lip up enough to leak air. Not sure how it didn't rip the tire. I had to have that wheel welded up because it cracked during repair. Wheel in question is an American Racing Avenger.
As for tires... expensive doesn't always mean significantly better. I bought a set of Ohtsu (Falken) tires for my Altima for $53 usd a piece shipped. They are STICKY; and I say that coming from some sexy asymmetric Goodyear Eagle GTs. I know the Ohtsus won't last too long, especially since they only quote 30,000 miles as their lifespan... but the point is that they work well during said lifespan because they're such a soft compound. I prefer changing out cheap tires every 2-3 years for a fresh set, rather than driving on hard plastic for the next 5 years with expensive, long-lasting tires.
That said... the Ohtsu's sidewalls could be a bit stiffer. I really miss the hard external sidewall rib of the Goodyears... it made the Altima feel lighter on her feet. The Ohtsus are actually sticker though; though not as responsive.