Computers were roughly ~ $1000 in 1990. How did your lower-middle class family justify a $1000 expenditure inflation adjusted to $2565 today? Average minimum wage in the US is $11.30 so that's 29 days working at minimum wage.

My family was on the border of upper-lower and lower-middle and we bought a computer once and used it for 10+ years. I dumpster dove later to scavenge parts for upgrading until the mid 2000s when cheap computers became available.