One of the biggest things that appeal to me for Beckett, aside from the $$ savings you can get 'hunting' a product rather than actually breaking it, is the following 2 scenarios... let's say you're an avid Albert Pujols collector.
2004 Donruss: Diamond Kings Studio Insert #DK3 /250 = $4.50, Donruss Elite Career Black /100 = $4.50, Donruss Elite Career Best Gold /130 = $4.00, Donruss Elite Extra Edition Round Numbers /500 = $2.50, Donruss Elite Passing the Torch Green /500 = $2.55, Donruss Elite Turn of the Century /750 = $1.40, Master Craftsmen /150 = $6.50, Power Alley Red Die Cut /250 = $4.00, Production Line Average /359 = $3.60, Production Line OPS Black /125 = $4.50, State Line Career /381 = $3.25
Total = 11 Cards for $41.30
Topps Gold: 2020 = $2, 2019 = $2.20, 2018 = $1.98, 2017 = $2, 2016 = $2.60, 2015 = $4, 2013 = $3.20 & $2.80, 2012 World Series Highlights = $1.47, 2011 = $2.10, 2010 = $3.24, 2010 National League MVP = $3, 2009 = $3, 2008 = $4, 2005 All-Star = $8, 2004 with Ichiro = $6.90
Total = 16 Cards for $49.49
So you'd have amassed 27 Cards for your Pujols collection for $90.79, averaging $3.36 per card, and had a pretty good completion of an annual Topps Gold set going too without spending literal hundreds breaking boxes to chase the above cards.