I read there is no need to add more memory to gps unless adding more than 200 addresses ? So, no need to buy and install a new SD memory card because it still has plenty of memory left? my Maggelln Roadmate 3045-LM says 87% full and I haven't added many addresses yet, but plan on adding when I move. Apparently a user is stuck with maps of places like Hawaii and Puerto Rico even though I am not leaving the area of the West Coast of the USA. At what point is it time to add more memory? When it says out of memory, then get some more?
btw, if I do add a new SD memory, does it matter which class I add, is class 6 fast enough?
Thanx..

btw, if I do add a new SD memory, does it matter which class I add, is class 6 fast enough?
Thanx..