Lol, why should I make fun of myself. Dude, that has nothing to do with the fact that I'm a web designer (not developer). Why should he hire someone like me if he needs totally different things. Whatever.
Also, in what era do you live? It's 2010 here not 1999 to recommend OScommerce and ZenCart for a real online shop. He has 50k items and I guess he doesn't have 100 uv/day. So, at least a vps and the free version of Magento (or something like it) is required if you are serious about your business. The guy seem to have a serious shop, not an ebook for sale that you could host it on any $5 shared server.
I still can't belive that you are serious about recommending OScommerce to a serious online shop.
P.S: anyone arguing that OScom. is good please take a little research on mighty G about OScom compared to other REAL shopping cart solutions.
The fact you are a web designer and not a developer shows. Most developers concern themseves with using the most appropriate engine and code for the task at hand whereas most web designers are itching to use the bestest most latest and flashiest engine they can grab hold of.
True, Magento is awesome and impressive and a fabulous piece of kit. But it is also the ferrari of the ecommerce word at present and not everyone needs a ferrari. Other offerrings may not be as impressive but they get the job done and probably do not need a full blown web designer to be paid in order to customise it and start making money.
Now 50k of products is not really a huge amount (although I would question if a shop would really need this many but I guess it depends on the marketplace itself) and OSC, Zencart, Prestashop etc could easily handle them.
Now as a web designer one of the first rules you should have learned is "Just because you can, does not mean you should".
So following this reasoning, just because Magento is there, does not mean it is the most appropriate tool for the job. Nor does it mean it is not. What it means is it should be considered along with everything else taking into account the budget, resources needed and of course the fact it will need a developer to heavily change it, plus the fact it is resource hungry.
In comparison OSCommerce, Zencart etc are equally viable but may be more suitable if the budget is limited.
The goal is to make sales not to impres other web designers so you can slap each others backs. I have seen simple html websites making more money than some Magento stores because the web designer does not understand this basic concept.
Mock the out of date ecommerce engines if you will but you will not be serving your clients properly if you dismiss them.