Low Ticket Sales calls

Hi I’m a beginner in sales! If you have a product you are selling for 29.99 or 99.99 a month, is sales calls ( cold leads ) still useful? I'm doing the calling for my own software.
Not sure if I should cold email with demos / free trials instead but I like the idea of calling.

I like this price point for impulsive buying while selling b2b increases need and likeliness to stay.