This is also way off base. The current 003 is NOT "a steep cost premium compared with equivalent hardware from other manufacturers".
For example the 003 is roughly $1100.00 with both hardware and software.
The rack version is roughly $1100.00. It is approximately equivalent to an 8Pre, which costs $550. That's roughly double. The same goes for the control surface version when compared with equivalent products.
Compare that to three box's that mirror the 003. The Motu 828 $750.00, The Presonus Firestudio $500.00 and the TC Electronic 16 in and out box (name escapes me) $550.00. Add to that a copy of Cubase at $600.00 and the 003 is cheaper than 2 of the 3 solutions and the same cost as the 3rd.
The 828 is a 192 kHz setup. The 003 is just 96 kHz. Therefore, that's not a fair comparison. Also, it comes with AudioDesk (assuming you're on a Mac). In many ways, AudioDesk is more capable than Pro Tools LE that comes with the 003 at the price you mention. Among other things, AudioDesk has plug-in delay compensation and no track limit. LE has no such compensation and caps out arbitrarily at 32 active tracks. Of course, AudioDesk doesn't do MIDI, so there's a definite tradeoff. In any case, the 828 is comparable to the 003
without buying any additional software (at least on the Mac).
The Firestudio comes with Cubase LE. Again, the Digi 003 product you are talking about comes with Pro Tools
LE, which is a limited version of Pro Tools that is actually less powerful than Cubase LE. Pro Tools LE is limited to 32 tracks, and lacks critical features like plugin delay compensation. Cubase LE has plugin delay compensation and a 48 track count. To get up to that 48 track limit from Pro Tools LE, you have to go out and buy the ProTools LE Music Production Toolkit for another $495.
Pro Tools LE isn't remotely comparable to Cubase SX, Digital Performer, or Logic. PTLE has no plugin delay compensation, a 96 kHz maximum sample rate, no surround sound capabilities, a limit of 32 tracks, no import or export of OMF or AAF (which means that if you ever want to move from Pro Tools LE to another software package, you have to buy the Digitranslator package for... yup, you guessed it... $495), etc.
So you're paying a couple hundred dollars more than you would for an equivalent system with SX or Logic or Digital Performer, but getting a much less capable DAW. If you like Pro Tools, that's fine, but don't believe for one second that you aren't paying a steep premium for it....
The "being locked in" argument always puzzles me. As a consumer you do the research and base your decisions on that hopefully informed conclusion.
Well, let me give you a list of ways that tied hardware can screw you over:
First, when the hardware fails, you get to buy the software again. That software will never be usable by anyone without the hardware, so the cost of the first copy of Pro Tools is a wasted expense. Of course, you get a copy of Cubase LE or AudioDesk with other interfaces, so part of that extra expense is a give, but at least you could ostensibly sell your copy of Cubase LE or AudioDesk and somebody could use it without needing to own some specific piece of hardware....
Second, if you ever decide you want to use a mobile interface or upgrade your interface, you're basically stuck with buying another Digi interface unless you want to start over with a new DAW.
Third, when Digi stops supporting your interface in new versions of Pro Tools after a few years, you no longer have a viable upgrade path for that setup. If an OS upgrade forces you to upgrade to a new version of Pro Tools, you have a choice of buying new hardware or changing DAWs.
That's why buying software that is tied to hardware is a bad idea. This isn't a conspiracy theory. It's just common sense.
Bad information is bad information.