I just buy cards and products that I genuinely like first and foremost, and sit on them until it becomes worth grading/selling, i.e
Scan a single card or your whole binder you'll have accurate values, full card info, and a growing digital collection in minutes
1 2 3 "Retired sergeant major paved way for EOD technicians in elite Special Forces unit"
Being able to force your opponent into attaching more Energy to attack can really set them back, and maybe that is the birth of a great control deck
Collector boosters offer foils, showcase lands, and rare treatments you cant get in regular draft or set boosters, which makes them absolutely worth it
Or why not build around one of the many planes of existence in the world of Magic