Let’s take as example (a), an iPod; example (b), a coat; example (c) tennis lessons (a service); and (d) an interpersonal relation.
Although the good invested to acquire all three examples differs from the one commonly invested in getting to know a person (i.e. one buys a friend or lover not with money but with time*), I would say that as far as the investment process goes, they are sorted from the most dissimilar to the most similar when compared to a friend.
In (a), one simply approaches the product and trades it for its assigned value in money.
In (b), one approaches the product, tries it to see whether it fits, then may decide whether to invest the money equivalent to actually acquire it.
In (c), which, being a service rather than a product, is most similar to a friendship or other interpersonal relationship, one has to, little by little, invest money, while getting to know the service and whether it fits him or her. The first try may be for free, but in the long run you get to choose more than once, twice or thrice whether you would like to keep investing in the service.
Similarly, in (d), one may not need to invest a lot of time or attention* to meet the person in question (if introduced by a common acquaintance), but in order to maintain a growing relation, one needs to keep investing time in the relation.

This would also raise the issue of value versus price, which is very valid so much in commercial products and services as in people. This can depend on circumstance and on the character of the person in question.
__________
* Although many ‘goods’ other
than time can be involved in the
transaction of acquiring a friend
or lover, I will consider them all
equivalent to varying amounts
of time, for the sake of simplicity
(and ignoring the overused
equation of time=money which,
though logical in some respects,
is more far-fetched).

Then again, your point as I understood it was more about the moment of gaining interest.
I would say that this depends heavily on the type of store you shop for friends in: I suppose there are shops where there are so many products that first appearances have to count a lot; and that in other, smaller shops, where everything is brought for display by a friend or trusted acquaintance (and products are not to be found in this overwhelming capitalist abundance that, so to speak, forces you to go for the sugars and fats since you don’t have the time to get interested in the actual taste of the thing), there, one might find that packaging matters at least a little bit less.
Of course, the best advertisement of one’s hidden qualities, supposing one cannot impress on first impression, comes from those that have experienced these qualities and can tell of them to the new potential buyers.
But, in an environment where not so much a common interest [or, even worse, a common wish to vaguely 'chill out'], but more a friendly recommendation has brought about the company, one surely has more chances to tear his own unattractive packaging and communicate directly, product-to-product with no packaging in between, thus maybe finding his or her place in that company.

I maybe babble a little bit, but I hope to have made my point.

I just believe one should first do his reserach, gather and understand which are his references before posting stuff.

I agree with Dionysi’s opinion. You should post if you know or at least believe that your post will have something to offer to someone.

First of all, If some of your readers needs a menu one day, he will remember your post and use it without losing time googling. Of course, you could just post about other jquery menus, but hey! your menu may be more suitable for someone. I wouldn’t recommend you to start writing your own menu, but you ‘ve done it, and now it’s time to share it.

I don’t see why you shouldn’t write about it. Well, it might be a bit boring and I’ve-seen-this-a-hundred-times but it doesn’t have to: You could talk about what other good menus exist, why your menu is different, an in-depth tutorial/explanation/study on how you did it or why aliens would love it. You are creative enough to come up with an interesting post.

Imagine someone searching for the topic in hand: Would your webpage, as a result, help them better understand their quest and provide solutions to it? Then you should post.