My laptop history:
1. Cheapo entry level Acer, less than RM1.8k back in 2008. Unusable after 3 years, too slow - what to expect for an entry level laptop in 2009.
2. Dell Inspiron with 2nd gen i7 in 2011/12. Very reliable, lasted me full 6 years and actually should be still working until today, but I moved on to a desktop PC and the plastic parts have decomposed.
3. My sister's Dell Vostro bought around 2.5 years ago, all good until now, just changed battery.