Bike Maintenance is much like car maintenance to a certain point. If you drive cars in dusty conditions, then maintenance is much more often. And mud also. And much of it depends on your personal desire for a clean bike.
If I paid that much money for a nice bike, you better believe I am going to keep it from getting to the point of no return.
As far as your wheel, depending on how long is "just purchased" the bike shop you purchased it from should true it up for you.
I have used Pedros Ice Wax on chains for years. Don't use automotive degreasers on your bike parts, especially stuff like Purple Power or similar brands, it really takes off your decals and lettering, etches rims and is just too harsh for your bike. It also cuts through any anodized part on your bike such as stems, etc, Pedros also makes a bike wash in a pump spray that is excellent. Not expensive, a bottle will last about 3 washes.