"And even if the battery would be the problem you can go to a phone repair shop and get it replaced there. There's no need for me to easily be able to do it."

"And even if the battery would be the problem you can go to a phone repair shop and get it replaced there. There's no need for me to easily be able to do it." This one is easy to counter. For the majority of low and medium end phones, by the time you need your first battery replacement, the cost of having it done in a shop will generally be close to, or exceed, the value of the phone itself. The last time I had a phone with replaceable batteries, I was able to purchase several spare batteries for a fraction of the cost of a shop replacement.