I've had the 401e for over a year now and it's a great machine. Capable of tensioning a wide blade and cutting thin veneers from deep sections of timber. I only really bought it because it was offered to me
very cheap. One thing you'll need to be aware of is that, with their larger motors and the current required to start them, the majority of these bigger bandsaws (generally speaking, over 14in) will need a 16amp supply, for which you'll have to employ an electrician to at least finish the job and complete the local authorities (unless you posses the necessary skills and qualifications).
In all honesty, I don't believe that you 'need' a saw of this size to be able to rip veneers (unless, perhaps, you're looking to do it for a couple of hours almost every day). With the range of bandsaw blades and tooth patterns that are available today (see
Tuff Saws!), there's no reason you cannot achieve great things with a smaller machine that runs happily on a 13amp supply.
Before I had the Startrite, I got along fine with a £200 SIP 01486 12in saws. Which a couple of blades from Tuff Saws, I was able to deep-rip hardwoods that were 5in or 6in thick. This gives you some idea of what is achievable but, at the same time, I wouldn't recommend pushing the capacities of any bandsaw to its limits... Ideally, you'll have an idea of the maximum thickness/depth of timber you intend to cut. Take that figure and start looking at bandsaws for the next size up (ie. if you're thinking of 200mm then, looking for a machine that offers at least 250mm cutting height/under the guides - though, there is a little more to it than that, like motor
output, not input...). What are the maximum width/depth capacities of your planer and thicknesser? Can you physically see yourself working safely and comfortably with boards wider than, say, 200mm? (Just to give you some ideas.)
The bigger your saw, the higher the cost of each blade you'll require for particular tasks. One disadvantage of having a large saw in a small workshop (without the space for a second, smaller bandsaw) is that you may find yourself constantly having to change the blade to suit various operations (deep-ripping vs. curve cutting, for example). This may also be worth considering in your search for your bandsaw - how easy is it to swap blades? Does the fence or fence rail needed to be removed?
Hope this helps.