Race helmets have different requirements. Ineffective argument.
Motorcycle helmets have to meet a minium safety standard to be used on the road, lower cost helmet manufacturers will work to those standards, no more no less. High end manufacturers will excede these standards because they have the experience and R&D facilities make the safest helmets possible.
Some of the extra cost goes into the linings and ventilation but this comfort and fresh air is still part of the safety to a rider.
Any Arai crash helmet you see being used in car or bike racing can be bought off the shelf at an Arai stockist. There are no different standards between road and track only the best they can make. Riding on the road is no less a danger than the track.
If you drop your Arai helmet, you can send it back to them to be X-rayed to see if it still safe.
If you wear your helmet every day the linings can wear out, at the higher end of the market spares are available, spare visors and pinlock as well, the list goes on, that is why they are expensive.
If somebody cannot afford, or does not want to spend that amount of money, that is a different matter,
A rider should always buy the best they can afford.
No, I don't have an Arai helmet, my choice.