Most people bought Blink because of initial price being lower than Arlo. Next was no monthly fees and longer battery life. The up to 2 years battery life is just that…up to. Realistically it is 3-18 months depending on usage. Some are getting 2 years but it is with very low usage per day.
There are dozens of live realistic comparisons on youtube. That’s what I used when I was shopping. Congratulates your self on doing the homework before you buy. Way too many people out there that do the homework after they buy due to assumptions made that resulted in frustrations and a poor customer experience.