A great ultrawide monitor replaces two messy screens and should last you five to seven years. Buying cheap usually means bad color accuracy or flickering backlights, so spending a bit more up front saves you from buying twice.
Tech brands drop new displays every spring, which means August back-to-school sales are the sweet spot to grab last year's flagship model at a steep discount.
Keep in mind that a 0% intro period is a strict deadline, not free money. If you still have a balance on your Citi Simplicity® Credit Card after 18 months, regular interest applies to whatever is left, so stick to your payment schedule.