The "Nintendo tax" is a huge put off.
For example, the original three Devil May Cry games can be purchased on PSN for £24.99 (currently in sale for £8.24)
On the Nintendo E-shop you have to buy the games separately and they cost £15.99 each! That's almost £50 for all three games, close to double the cost on the PlayStation!
Here is another one. Witcher 3, complete edition is £35 on PSN, but £50 on the Switch! A lesser version as well!