Each saw [manual or power] has a niche.
Vertical bandsaw can do cutoff up to depth from blade to inner frame casting. One limitation is frequently caused by owners; placed in corner or alleyway that restricts ability to handle unlimited infeed length. Naturally, strong suit of vertical band saws is contouring inner & outer profiles. Even against wire EDM, having tilt/ incline table for backside of dies, roughing draft into mold cavities, and regular mitering. Once saw a textbook showed examples of roughing turbine blades. . .
Horizontal bandsaw design allows unlimited infeed AND outfeed, all have a stop arrangement for repetitive work, again the narrow kerf consumes minimal stock. A conveyor-roller set up is not required; if you build a support, it is worthwhile that it levels in both planes. You'll see why when cutting flat plate. Unless a part requires being vertical, I position the teeth to the wider side. Saves a lot of milling to square up ends. They are good for bundle cutting too. A relatively small footprint can handle large material, miters, and needs little attention while cutting. Marvel patterned machines simplify mitering by tilting the wheel-head. Certain Wellsaw machines descend on guide posts instead of being hinged; handy when cope notching is called for.
Power hacksaws aren't so well understood now-a-days. But they are still being made, in frames so large few horizontal bandsaws can offer same capacity. Yet with out 2 wheels they are more compact. I still like them for tool steel; my little Craftsman and 12" Starrett Bimetal blades runs like a charm. A bit slower than band machines, I can do work while it proceeds, and blades are fractional in cost compared to bands. 2 or 3" cuts - No complaints!
Cold saws main attractions are fine finish, compact footprint, quiet operation and best mitering arrangements ever. Size for size, less capacity at a higher cost than normal saw options. The good finish is a time saver, saves milling one end on toleranced lengths. They consume 5 to 7x the material per cut of bandsaws.
I have six power saws 36" 3 wheel DoAll is my favorite, only lacks the big support post for cutting dies, and hydraulic feed. Another 36" is a 2 wheel Moak, a lot like a Crescent, not as stylish. It's direct drive and waiting for a VFD, essentially a woodworking re-saw, but I want to build a creeper base for it. Has bigger throat than the DoAll; that is it's plus. BTW, my first big DIY old iron machine move; rigging, trailering, offload and all, freaking thing must be 9' tall and 2500+ lbs.
Milwaukee portable bandsaw, and chain vise table. Added a stop and rolling cart. Being able to use it as intended is the huge plus, none of the others like getting in a scaffold! 2 Craftsman saws; the power hack mentioned and their tiny horizontal band saw. Added stop rods to both of course. Being semi-portable means they have a secure home too.
Number 6 will be a shop sized horizontal, when the owner finally replies.
Wait one....it will be #7. Forgot ShopSmith bandsaw rig. Kind of small but easily made attachments, circle cutter, re-saw fence, axial & lineal stock stops. Love the tilt table, standard 1/2" blades and variable FPM.
A lot of saws, yes. The Moak was first while looking for DoAll. Both came with a comparatively immense stock of blade rolls. DoAll has a welder, and I've had a independent DBW-15 welder forever. So they'll [bandsaws] each run economically and 100% free of infernal OSHA restrictions.