'Dreadful performance'? If you mean slow, certainly, but for those whose pleasure is in the journey, that might not be particularly important. The humble Falke and slightly less humble Fournier are economical and efficient, great fun to fly and if it all goes quiet, unplanned, will be a lot more use than many a spamcan. I've nothing against spamcans, or microlights, but the original question was specifically about motor gliders and their suitability for cheaper flying. In that respect, they are excellent.
Incidentally, as mentioned previously, it pays to log TMG time separately not just to assist the calculation of hours in the USA/UK where motor gliders are gliders/aeroplanes respectively but also because of 'tailwheel hours'. For insurance purposes, I give total tailwheel time but specify the TMG element.
Give it a try..
