i prefer astral magic, but that’s not to say that physical magic isn’t worthwhile.
my use of astral spaces is the result of limited physical room, as you mention. it’s easier to get over the whole “confined area” thing once you realise (and by that, i mean accept on an emotional level, as i’m sure you “realise” it intellectually already), that space/time is a conceptual phenomenon we rely upon for sanity, and has little effect or impact upon the magic we perform.
also, check out a book called Portable Magic by Donald Tyson. it’s a great little volume which presents the tarot as a complete system of ritual magic, which one can make use of with only a deck of tarot cards and a table top. more than that, however, it shows us how flexible ceremonial magic can be and how it may be “miniturised” for convenience, as well as all the other good things that go along with it.
if you subscribe to Austin Osman Spare’s system(s), the whole point of ritual or ceremony is to prime the aetheric body/ies for a single moment of gnosis, when the desire is released and transmuted through space/time into idealised manifestation. thus, the only limitation imposed by physical room to move is that of making the psychodrama kind of lame. if you don’t need psychodrama (and, you don’t, really… refer to Spare above), then you just need to find a way of reaching the desired energetic point where desire becomes transmuted. again, astral magic is great for this, and the tarot also represents everything in existence, so it’s a great model to use as a starting point for astral and other magical systems.
i have a neat little altar set up in my study (and it has goat legs!), but i perform virtually all of my magic astrally, as i prefer the freedom and perfection of astral work. for example, on the astral plane, my circle is perfectly round, my pentacles are perfectly drawn etc, whereas when i work on the physical, i need to accept that not everything is going to be perfect or ideal (and being a capricorn, i’m also a pedantic perfectionist). also, i’ve found that trance states can go deeper on the astral anyway, and when you reach a state where the physical body kind of fades into the background, you realise that such a state could only be reached on the astral.
by the same token, there’s nothing like the feeling of really drawing down whatever it is on the other side of the veil, and into the physical circle, when you start hearing and seeing things, and you’re sure you’ve just lost your mind. of course, that isn’t needed for effective magic, but that’s also something that astral ritual doesn’t provide for. in any case, working astrally will also help strengthen your psychic abilities, and they’re mandatory for any kind of magic, be it physical or astral.
kind regards, Tj.