usually at 18mos pwede ka na magearly retention. kung "suki" ka dun sa iisang WC lang usually, sinasabi nila. pero kung every now and then paiba-iba ka ng WC (na pinagbabayaran) medyo wala ng "personal touch", i.e. subtle reminder na pwede na kayong magretention. observation ko lang though... anyway, kung may close naman kayo sa WC nyo di pa-remind na lang kayo at 18 mos.
pwede pa....nag-aantay lang ako ng magandang offer na phone bago ako mag-avail, pangit pa nga offers nila ngayon...I think mga PDA phones di na sila nag-ooffer kasi di nila kaya i-network-lock hehehehe....i'm due for a retention package 6months ago pa kaso pangit offers eh....
Smart also offers higher-end phones for users who are on bigger plans. Halimbawa, sa plan 1800, libre ang Nokia N73ME, E61i at Sony Ericsson P990i, among others.
As theveed said, it's an acceptable option if one has no intention of switching.