1st: these pressuremates do not attract attention that much, that it will catch everybodys eyes. Of course they stand out more than the normal caps, but they are not that colorful like on the pictures.
2nd: Not every pressuremate fits automatically to every car. For every pressure value, you need a different pressure mate. That even starts with your winter tyres. So perhaps you will need a second set for your winter tyres....
So I'm not sure if you will have problems keeping your pressuremates.
But at last they are not easier to remove then your Antenna! :D