How and why to remove “Powered by Shopify” from your store?
Pricing consideration is just one factor out of many, and I’d argue that this factor should not be the most important one.
Speed. It isn’t all you need, but it is one of the most important metrics you should test and retest for your online store.
Make “speed index score” one of your primary performance metrics for your Shopify eCommerce site.
If you are just starting out, I’d recommend sticking with a free theme and learning how to work with it.