Trading style: around the clock scalper with a very tight stop loss (4 pips for the L version, 2 pips for the S version) and with a much larger take profit target (13 pips for the L, 11 pips for the S). Naturally, the losing trades are predominant but overall it still makes good headway.
Currency pairs: EURUSD
Timeframe: H1
Price: $127

Trading style: impulse scalping on several pairs.
Currency pairs: EURUSD, USDCHF, GBPUSD, USDJPY, EURJPY, AUDUSD
Timeframe: M1
Price: $189

Trading style: trades price impulse retracements (somewhat like Million Dollar Pips).
Currency pairs: EURUSD (actually supports any other pair with low spread that is susceptible to similar price spikes - such as GBPUSD or USDJPY - but the default settings have to be changed)
Timeframe: M1
Price: $997/year

Trading style: trades in sets of two simultaneous scalping trades in the direction of the trend, one with an 8 pip TP, the other 13, both with a stop loss of 26 pips. Multiple such sets can be open at once (up to 3 by default, totaling 6 trades).
Currency pairs: EURUSD
Timeframe: M15
Expert Advisor price: €249 - recurring yearly subscription
License: 2 live accounts

Trading style: scalping, very short trade duration, multiple concurrent positions possible; due to the low average number of pips per trade, the results for this EA will certainly vary greatly from one broker to another.
Currency pairs: EURUSD (an USDJPY version exists as a separate purchase worth $99)
Timeframe: M1
Expert Advisor price: $99