anyone can shed some light on less expsensive instituional grade Quant platforms?

i have been evaluating the Quant platforms listed on Quantpedia for some time.

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i narrowed the selections down to QuantOffice, QuantHouse, OpenQuant and AlgoTrader. i spoke with QuantOffice and their pricing is $100K/year, so it is out of reach. OpenQuant is $20K/year and AlgoTrader $10K/year. they seem to be the most affordable platforms that i found.

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does anyone have experience with these more affordable platforms? any other platforms that supports at least one full programming language (C++, C#, Python and R) that you would recommend?