I hear you. A LOT of young people and older live on credit of tomorrow, counting what they will have in the future. It's a VERY risky game and MOST loose. That's why they are forever in debt after just a few years forever paying interest.
MOST of the time when i have done buy it on 1 year same as cash it's because I had the cash already and just put it to the side in the bank but most people cant do that. I have also bought a few things I didnt have the cash for and paid more later due to life screwing things up.
I'm with you, I buy most of my major purchases online and on craigslist. I got my $150 Hoover vacuum for $35 and it's perfect. I will admit I did just purchase a Hoover Carpet cleaner for $320 but there is a BIG difference between a GOOD vacuum and a shampooer. it also has a 6 yr warranty and I did 2 weeks of research online before making my choose. I have owned others in the past also so I know what I wanted/needed it to do.
A lot of people are sucked into (pun intended) buying a rainbow or Kirby vacuum and shown little tricks that are nothing but that, tricks to make them look better.
Same with furniture. MOST I will by 2nd hand but NEAR new for 1/10 the original price. I have 4 matching lazy boy recliners for my movie room along with my massage chair/recliner and foot/leg massager. The lazy boy recliners cost me $150 for ALL 4.
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The massage chair cost me $100 and even my masseuse friend like it; it's not one of those vibrating ones, it's a real hard roller massage.
My bedroom set is $1500 most places (bed only) and I got it for $450. BIG 4 poster bed.
Soon they will be in-debt for life. It's sad.