Hard to make an apples to apples comparison
But average household income in 1929 was about $15k per.
https://www.pbs.org/fmc/book/9money3.htm
To put it another way only about 2% of American households in 1929 earned > $10k per year. The largest groups were $1,000-$1,500 (21%) and $1,500 to $2,000 at 18%.
Thus clearly anything that cost $214 was a serious expenditure.
https://www.gilderlehrman.org/content/statistics-american-economy-during-1920s
You can see here things weren't that much better in early 1930's either:
http://www.johnstonsarchive.net/policy/famincome.html
Then you have this:
"The Great Depression, despite all the hardships of the American people, would see the meteoric rise of the refrigerator. At the start of the 1930s, just 8 percent of American households owned a mechanical refrigerator. By the end of the decade, it had reached 44 percent. The refrigerator came to be one of the most important symbols of middle class living in the United States. While the upper class rarely interacted with such appliances, given the fact that they had servants, the middle class woman of the 1930s lived in a "servantless household"—a phrase you see repeatedly in scholarship about this era. The refrigerator was tied to one of the most fundamental and unifying of middle class events: the daily family meal. And it was in providing for your family that the refrigerator became a point of pride."
https://psmag.com/environment/the-rise-of-the-refrigerator-47924
This merges with one has read in period women's magazines of the day such as House Beautiful, Better Homes and Gardens, etc....
The average educated (even if only high school and or perhaps college) was lectured, admonished, preached to, and in general all sorts of chidings to get her to preserve the health and safety of her family. One of the ways she could do this was via electricity and the mod cons it offered. Primary on this list was refrigeration.
Ice boxes were all very well but didn't keep foods always at proper temperatures, and forget about freezing anything for long term storage. Consequently cases of food borne illness ranging from a minor tummy to things far worse were common. That and or foods were constantly being rubbished from going bad, even in the ice box.
As above article notes there was also a bit of "Hyacinth Bucket" in all this. Adverts reflected real life in that Mrs. Andrew Jones couldn't wait to show off her new electric fridge to Mrs. Louis Bourbon and the rest of the "girls". Who likely promptly went home and began getting at their husbands to get them the same. Never underestimate the power of "two tarts in the kitchen" for advertising.
For households that couldn't pay for a new fridge in cash, even back then there were payment plans and store charge accounts. Also (IIRC) as we were discussing in another thread local electric utility companies also often had all sorts of deals/special financing for appliances. Again they would, wouldn't they? Even selling a fridge at slightly lower prices they would still make their money each month on electric bills.