Jason England would disagree with you on that.
I've already mentioned that the 2nd deal is a lot more versatile than the DPS. But hey, whatever floats your boat sweet cheeks.
You said that the OP would not get much use out of the DPS. In that one statement, you assumed you knew everything about his presentation style, his approach to close-up magic, the venues and situations that he will be performing in, and the type of magic he is interested in. Now, if he was debating the dps vs the double lift, then your statement might have some weight to it, but outright saying that he would not get much use out of the DPS, making the second deal a better purchase, is absurd. You can of course voice your opinion on the subject, but do not presume to think you know all about the original poster and or the possibilities with each move. I have been performing magic for well over 10 years now and by far use the DPS more than the second deal, as I do more standing and strolling magic than I do tabled magic. THIS of course does not also mean that the 2nd deal can only be used in a sitted situation (preemptively defending the assumption you were about to make).
So in any case, your "mention" that the 2nd deal is a lot more versatile, is your opinion, and not a God-given statement of absolute truth, thus a misleading statement to people who lack the experience to judge for themselves which will be more useful and versatile in their magic career.
Anyway, back to the OPs original question. Learning the second deal gives you a good understanding of a long-standing and solid sleight, which in-turn, will also provide you with a good substitute to things like the top steal, double lift, and need for controls. The dps on the other hand, in my opinion, has more immediate applications when done well (which does take a lot of time). It has a more motivating method then a standard 2nd deal, and will look more natural when performing standing up, as it will seem to be more in place than say, doing a poker like deal while standing up. A 2nd however, the dps can also be substituted by many other sleights, as well as the 2nd deal.
In the end, its personal preference, but you will get a lot out of either, and in the future you will be able to judge which one you will end up using more. For me, I use the DPS quite a bit, and only use the 2nd deal when messing around with poker demonstrations, etc...
Eric