That's true, you're right.
Anyone can multitrack on their PC, hard disc multitrack recording, using these software titles you mentioned above, including the one I mentioned, Magix Studio 5.
As I said, Magix Studio 5 is 16 track DAW software, but BTW doesn't cost an arm & leg, like some of those other titles.
All Magix Studio 5 versions have MIDI sequencing built in, the higher versions integrate with video production, onboard, and the deluxe version goes up to 32 tracks .
I only have the basic Magix Studio 5 [16 track] version, for ~$40, while some of those other titles [Sound Forge, Acid, Cubase, Protools, etc] may cost hundreds.
You can buy many software titles for audio multitrack recording, [DAW], and I'm not saying you have to buy what I buy, but I'm just giving this as an example, that DAW software does not have to cost a 'lot'.
The technology is 'there' enough, that a lower priced DAW software package might do as much as the higher priced ones.
Hey, I bought Magix Studio 5 [quite a while ago], and I've been really happy with it. I've seen Cubase & Protools, and others, and Magix does everything they do. When I found out how much Cubase costs, I almost fell over.
Still, I'm just using myself as an example. Buy anything you want.
Check out a few different DAW software packages. Go to Guitar Center & look around & price things, and also go to Best Buy & Fry's and price things, on multitrack audio recording software. There's a big difference.
True, I could very well multitrack [16 tracks] on my PC with the DAW software I have, Magix Studio 5, but I just use it to record stereo mixdown, WAV files. Magix does a great job of recording, but I'm not multitracking on it. I just prefer to work with Portastudios and R/R's & mixers, over doing multitrack on the computer. To me, analog recording is still 'better', and I don't particularly like intesive multitrack on computers, due to certain percieved drawbacks, such as audio 'isolation' of the PC in the studio, DAW mixer 'latency', 'maxing out on cpu power', and also simpler things like eye strain and hand strain from prolonged computer use.
No doubt, 'digital' recording is more popular than ever, and people are moving to digital recorders or DAW recording in record numbers.
Studios, and lots of other people have given up recording on analog recorders altogether, but some people still like using analog recorders for multitrack [over PC], like me.
Still, even analog multitrack people like me want to master to CD, over tape. That's just where the state of the art technology is, CD recording. CD is the standard. Mixing down to cassette is dead, it's a moot issue, it's not happening. Some people may still do it, but no one wants to listen to cassettes, if they can afford CDs, including me.
Forget the '70's [8tracks], forget the '80's [cassette]. Think post-'85, CD's became important. Think early '90's, CDs became the standard.
Think late '90's, CD recorders came to the home/consumer market.
Think modern, think 21st century. CD recording is 'it', and 'digital' is 'in'. Digital multitrack recording onto hard disc with DAW software is 'in', but I never claimed to be with the 'in' crowd.
Anyway, many digital recording software packages are out there. They're numerous. Check them out, check features and prices.
Whatever recording software you find or buy, good luck recording. You're on the right track.