I think you can adjust the temperature and airflow on most (maybe all?) of them, usually a couple of knobs inside, they're up high on the back panel of my antique Sears Coldspot. I bought my refrigerator well-used for $40 in 1988 (post-divorce, money was very tight), still using it! I think I replaced the fan motor once, myself, long time ago. Still friging so I've never even considered replacing it. I just took a quick look on Home Depot and they have several side-by-side refrigerators around $1100-1200 with free delivery, not cheap but considerably less than $1800, top-freezer models are a little lower.