The cart connector is comparable to the MVS version. And I don't see arcade operators removing all the carts when they close up at night. I don't think it will make a big difference, really.
I think the damage is when you leave an NES cart in the machine pressed down for years.
The difference between an NES and Neo cart slot is that the NES one is EASILY available to replace.
Are there many Neo Geo consoles with bad cart slots?
I hear about faulty NES slots all the time, though.
It'd be nice to have a source for both MVS and AES slot connectors.
To reduce insertion marks on my AES games I just buy a new console on which to play each game. That way they never get damaged from insertion or removal into the Neo Geo. Leaving games in the console is the best way for AES collectors to protect their video game investment!

The cart connector is comparable to the MVS version. And I don't see arcade operators removing all the carts when they close up at night. I don't think it will make a big difference, really.
MVS slots don't have flaps like the AES, so removing the carts for extended periods of time will just put it in risk of having dust or insects jammed inside. That is, unless you're moving the cab, in which case there should be no carts in the slots.
If your house is so dirty that insects are running rampant and crawling into your MVS, the condition of a video game system is the least of your concerns.MVS slots don't have flaps like the AES, so removing the carts for extended periods of time will just put it in risk of having dust or insects jammed inside.
If your house is so dirty that insects are running rampant and crawling into your MVS, the condition of a video game system is the least of your concerns.
We all know that those flaps on the AES don't really do anything to prevent dust from getting in there.
If your house is so dirty that insects are running rampant and crawling into your MVS, the condition of a video game system is the least of your concerns.