I would think first of firmware, e.g. i2c if firmware supports it, then its fine, but otherwise not. I think repetier supports lcd via an i2c expander and if that is what you want to use, then it could work.
Otherwise if there is no i2c support you would need to draw wires directly to the lcd, that is bypassing the i2c expander. In any case, if you buy one without i2c, then probably wont be able to add it later. On the other hand if you have a soldering iron its not hard to hack into a board and bypass it. Again its up to you.
Otherwise if there is no i2c support you would need to draw wires directly to the lcd, that is bypassing the i2c expander. In any case, if you buy one without i2c, then probably wont be able to add it later. On the other hand if you have a soldering iron its not hard to hack into a board and bypass it. Again its up to you.