Can't say i've ever given much thought to achievements ???
If you base your time around achievements, your missing out. Both here, and in any other game that has them.
There's a reason the concept of achievements (or feats, or gamerscore, or trophies, or what-have-you) has proliferated throughout most of the online gaming world. There aren't many modern, major, successful MMOs, consoles, or distributors left who haven't established some sort of achievement system. Even some Telnet-based MUDs have begun to adopt achievements.
Of course obsessing over achievements is neither healthy nor reasonable, just as obsessing over anything else is neither health nor reasonable. But it is inarguable that, for a very large portion of today's gaming population, achievements are meaningful and add significant value to any gaming experience.
You can call them gold stars from the teacher if you want to be derisive, and you can call them cake sprinkles if you want to be cute, but to me they are a form of collectible, just as stamps, coins, and such things are. Think about how many games have some sort of collectible, all the way back to the VAX days, and then think of achievements as just another type of collectible.
Achievements also serve as a sort of current or steering mechanism for some people: It's a form of goal-oriented gameplay. Don't think of it as leading the user by the hand, but rather like a guy standing over your shoulder, just watching you have fun, who every once in a while taps you on the shoulder and says "Hey, buddy, if you do this and that, something neat will happen. Why don't you try it?". It serves as a gateway to the more interesting parts of a game, some of the most unique elements, for those of us who may like discovering fun little tidbits but are very bad at doing so.
I'm not trying to argue that achievements should be a dominant force in a game's development. I'm just saying that they are one more thing that can (for some) make a mediocre game good, and make a great game glorious.
I'm pleased to see the developer plans to add some as time goes on. I'm not worried about getting them in any sort of hurry: All I'm interested in is that at some point, when the development cycle has a window open, it's on the wishlist.
If you're not interested in them at all, that's fine, because we're all different. Just understand, psychologically, why they are not universally a waste of time.