Buy a watch only if you really like it, not because it's a good price.
But the way prices of ROLEX sports models are going on the grey/used market, any ROLEX won't "lose" money. See how the grey dealers are pushing the prices of the Air-King now to over RM30k, more than 6k above RRP.
The Explorer 1 is not a bad watch, nice 39mm size, easy to wear, no date so just wind up, set the time and ready to go. No fiddling with the date if you've left it too long.
If it's new or like new and you are happy with current RRP, why not? A 2 year old watch means it should have the 5 year warranty, with 3 years or so left. Plenty of time to fix anything wrong with the watch unless someone has tampered with it.